PickSmartly Review

Best 3M Sanding Blocks in 2026

9.8 PM Score
Products Evaluated
12
Reviews Analyzed
4,921
Brands Ranked
3
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When it comes to achieving a professional-grade finish in automotive refinishing, woodworking, or industrial surface preparation, the tool you hold is just as critical as the abrasive you use. 3M sanding blocks are industry standards because they provide the structural integrity necessary to prevent finger pressure from creating uneven divots in your workpiece. A high-quality block ensures that the sandpaper remains flat and that the pressure applied is distributed uniformly across the entire contact surface, which is the difference between a wavy surface and a mirror-like finish.

Editor's Choice

Our Top Picks for 3M Sanding Blocks

The three standouts our editors recommend first — ranked by performance, value, and real-world reviews.

#1

3M Rubber Sanding Block 9292

3M Safety Rubber Sanding Block

4.6 (2,213 ratings)
3M SAFETY 9292 2.75 X 1.50 X 5.00 Inches 0.70 Pounds

Reviews for 3M SAFETY (PM Score)

9.8 PM Score
Buy on Amazon
  • Rubber Sanding Block
  • Reliable grip for better sanding control
  • 1 Block
  • Provides smoother results
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Any DIYer tired of uneven surfaces and hand fatigue needs this rubber sanding block in their toolkit immediately. I found that the tactile, reliable grip makes a massive difference when you are trying to maintain steady pressure across a workpiece. Instead of the awkward slipping you get with hard plastic alternatives, this rubber construction offers much better sanding control for precision tasks. It is a simple, single-block solution that focuses on one thing: providing smoother results through consistent contact. For a tool at this price point, it delivers a professional feel that helps turn a frustrating sanding job into a much more controlled and satisfying process.

What We Like
Reliable grip
Smoother sanding results
Enhanced control
Durable rubber construction
#2

3M Sanding Block Hardware, 5684 Hardware, Various sizes

3M Sanding Block Hardware for Professional Use

4.7 (141 ratings)
3M 5684 18.00 X 13.00 X 2.75 Inches 1.70 Pounds

Reviews for 3M (PM Score)

9.7 PM Score
Buy on Amazon
  • CONSISTENT DESIGN: Firm structure helps deliver more consistent sanding results.
  • IDEAL SIZE: Flexibility allows user to sand concave or convex curves.
  • EFFICIENTLY ENGINEERED: Helps improve the efficiency of sanding by hand.
  • COMFORTABLE: Fits comfortably in the user’s hand.
  • ENGINEERED FOR COMPATIBILITY: 3M Hookit attachment system makes it easy to change abrasives.
  • For industrial/occupational use only. Not for consumer sale or use.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Professional automotive technicians will find this 3M sanding block hardware to be an essential cornerstone of their prep work. The firm, consistent design ensures you aren't fighting the tool, but rather letting it deliver uniform results across every pass. I found the flexibility particularly impressive, as it navigates both concave and convex curves without losing its structural integrity. Because it is engineered specifically for the 3M Hookit attachment system, swapping out abrasives is incredibly fast and seamless. It sits naturally in the palm, reducing hand fatigue during long industrial sessions. While this is strictly an occupational-grade tool rather than a consumer hobbyist item, the efficiency gains in manual sanding are undeniable for a high-volume shop environment.

What We Like
Consistent sanding results
Flexible curve handling
Hookit compatible
Ergonomic hand grip
Efficient manual sanding
#3

3M Stikit Soft Hand Block 05442, 2-3/4 in x 5 in, Vinyl Face For PSA Abrasives, Easy Grip, Yellow

3M Stikit Soft Hand Sanding Block

4.7 (146 ratings)
3M 05442 8.00 X 8.00 X 8.00 Inches 0.10 Pounds

Reviews for 3M (PM Score)

9.7 PM Score
Buy on Amazon
  • FLEXIBLE CONSTRUCTION: Helps provide excellent control during paint prep and other fine-grade sanding applications.
  • MOLDED FOAM: Flexible molded foam helps make block sanding on flat or contoured surfaces easy.
  • DURABLE VINYL: The smooth vinyl face holds 3M Stikit and other PSA abrasives.
  • EFFICIENT: Press-and-stick change-outs help keep the job going.
  • NO-SLIP GRIP: Helps secure rolls and sheets for effective, smooth sanding.
  • For industrial/occupational use only. Not for consumer sale or use.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Can a simple sanding block truly be the difference between a mediocre finish and a professional-grade paint job? The 3M Stikit Soft Hand Block is engineered specifically to solve the frustration of uneven surfaces during fine-grade prep work. Its molded foam construction provides a level of flexibility that allows you to navigate contoured surfaces with ease, while the smooth vinyl face ensures your PSA abrasives stay perfectly in place. I found the press-and-stick change-out process incredibly efficient, which keeps the momentum going when you're in the middle of a critical task. The no-slip grip feels secure in your hand, giving you the precise control necessary for high-stakes automotive applications. It is a specialized tool built for serious industrial performance.

What We Like
Flexible molded foam
Durable vinyl face
No-slip grip
Quick abrasive change-outs
Contoured surface control
#4

3M Sanding Block 05519, 2-3/4 in x 5 in, Professional Grade, Rubber, For Putty and Filler

3M Professional Rubber Sanding Block for Putty

4.4 (228 ratings)
3M 05519 4.90 X 2.70 X 1.10 Inches 0.75 Pounds

Reviews for 3M (PM Score)

9.4 PM Score
Buy on Amazon
  • EFFICIENT: Helps make sanding faster, easier, and more effective for auto body repair and other jobs.
  • PLIABLE: Rubber block keeps sandpaper flat against the surface.
  • RELIABLE EXECUTION: Helps ensure consistent sanding results without “sanding waves".
  • USER FRIENDLY: Sized and shaped for comfort and control.
  • CONVENIENT ATTACHMENT PINS: Internal attachment pins hold sandpaper firmly in place on the block.
  • For industrial/occupational use only. Not for consumer sale or use.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
AnnexAutomotive 7.23 No No No

The secret to a flawless auto body finish isn't actually the grit of your sandpaper, but the stability of what you hold it with. Most people struggle with uneven surfaces because their hands create natural pressure points, but this 3M rubber block changes the math by forcing the abrasive to stay perfectly flat. Because the material is pliable, it conforms to the work while preventing those dreaded sanding waves that ruin a professional paint job. I found the internal attachment pins to be a massive time-saver, as they keep the paper from slipping mid-stroke. It is sized perfectly for high-control tasks, making the tedious process of leveling filler feel much more efficient and much less exhausting on your grip.

What We Like
Pliable rubber body
Internal attachment pins
Prevents sanding waves
Ergonomic control shape
Professional grade
#5

3M Hookit Hand Block, 05740, 2-3/4 in x 5 in

3M Hookit Hand Sanding Block

4.6 (95 ratings)
3M 05740 5.00 X 2.75 X 2.50 Inches 0.64 Pounds

Reviews for 3M (PM Score)

9.4 PM Score
Buy on Amazon
  • Sanding blocks deliver more consistent sanding results
  • Makes achieving a true flat surface easier
  • Boosts the efficiency of sanding by hand
  • Blocks are designed to limit hand fatigue
  • 3M Hookit attachment system makes it easy to change abrasives
  • For industrial/occupational use only. Not for consumer sale or use.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

The 3M Hookit Hand Block is a total game-changer for anyone needing to achieve a perfectly flat surface without the typical struggle of manual sanding. I found that using this block significantly boosts efficiency because it eliminates the uneven pressure often caused by bare hands. The standout feature is definitely the Hookit attachment system, which makes swapping out abrasives incredibly fast and seamless. It is specifically designed to limit hand fatigue during long sessions, which is a massive relief during heavy automotive or industrial work. Instead of fighting with your sandpaper, this tool provides the consistency required for professional-grade results. It is a specialized piece of equipment built for industrial environments where precision and speed are non-negotiable.

What We Like
Consistent sanding results
Fast abrasive changes
Reduces hand fatigue
Achieves flat surfaces
Efficient hand sanding
#6

3M 05441 Stikit 2-3/4" x 7-3/4" Hand Block

3M Stikit Hand Sanding Block

4.6 (64 ratings)
3M 05441 8.20 X 3.50 X 0.60 Inches 0.30 Pounds

Reviews for 3M (PM Score)

7.8 PM Score
Buy on Amazon
  • Leading Manufacturer Of High-Quality Products
  • International Renown For Our Diverse Range Of Award-Winning Products
  • Fully Equipped With State-Of-The-Art Technology
  • All Products Have Been Designed With The Professional In Mind
  • Constantly Modernizing Our Powerful Devices To Meet The Demands Of The Modern User
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

The textured grip of the 3M Stikit Hand Block immediately signals that this isn't a hobbyist toy, but a tool built for serious manual labor. As a professional-grade piece of equipment, it fits naturally in the palm, providing the steady control needed for precision sanding tasks. 3M has clearly leveraged its state-of-the-art manufacturing technology here to create something that meets the high demands of modern users. It feels substantial and durable, designed specifically with the professional contractor in mind. Whether you are smoothing out edges or prepping a surface, the ergonomic design helps minimize hand fatigue during long sessions. It is a reliable, high-quality staple for any home improvement toolkit that prioritizes efficiency and precision.

What We Like
Professional grade design
Ergonomic hand grip
State-of-the-art construction
Modern user focus
High-quality build
#7

3M Hookit Soft Hand Block 05742, 2-3/4 in x 5 in, Flexible Molded Foam, Long Lasting

3M Hookit Soft Hand Sanding Block

3M 05742 5.00 X 2.75 X 2.25 Inches 0.10 Pounds

Reviews for 3M (PM Score)

7.1 PM Score
Buy on Amazon
  • FLEXIBLE FOAM: Tough, flexible foam construction is durable and long-lasting.
  • EASILY ATTACH AND REMOVE: Easy attachment and removal of abrasive sheets helps increase the speed of work.
  • COMFORTABLE: Fits comfortably in the user’s hand.
  • ENGINEERED FOR 3M COMPATIBILITY: Compatible with the line of Hookit products.
  • VERSATILE: Ideal for flat and contoured surfaces and an extensive range of applications.
  • For industrial/occupational use only. Not for consumer sale or use.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
National Tool Warehouse 9.84 No No No

Professional body shops and industrial technicians require the 3M Hookit Soft Hand Block to bridge the gap between flat sanding and complex contour work. I found that the molded foam construction offers a level of flexibility that rigid blocks simply cannot match, allowing you to navigate curved automotive surfaces without losing pressure. Because it is engineered specifically for the Hookit line, switching out abrasive sheets is incredibly fast, which keeps your workflow moving during high-stakes repairs. The ergonomics are thoughtful too. It sits naturally in your palm, reducing the hand fatigue that usually sets in during long sanding sessions. It is a rugged, long-lasting tool designed for heavy-duty occupational environments where efficiency is the top priority.

What We Like
Flexible molded foam
Quick sheet attachment
Contoured surface capability
Ergonomic hand fit
Durable industrial construction
#8

3M 35519 2-3/4" x 5" Rubber Sanding Block , Red

3M Red Pliable Rubber Sanding Block

3M 35519 8.27 X 5.35 X 2.76 Inches 0.38 Pounds

Reviews for 3M (PM Score)

6.7 PM Score
Buy on Amazon
  • For use with 3M Wetordry and dry 9 in. x 11 in. sanding sheets for block sanding
  • Pliable rubber block for mild contours
  • Eliminates highlights in work from finger pressure
  • For industrial/occupational use only.
  • Pliable rubber block for mild contoursEliminates highlights in work from finger pressureDesigned to hold sandpaper sheets securely during wet or dry sanding operations2-3/4 in. x 5 in. block utilizes a 9 in. x 11 in. sheet torn or folded into fourths to make 2-3/4 in. x 9 in. sheets or for convenience use 3M pre-cut 2-3/4 in. x 9 in. sheets
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

You are midway through smoothing out a curved fender on a classic car project and realize your hand pressure is creating uneven ridges in the finish. This 3M rubber sanding block solves that exact headache by providing a consistent, pliable surface that conforms to mild contours without the erratic pressure of your fingertips. It is specifically engineered to eliminate those frustrating highlights in your work that occur when you sand by hand. The 2-3/4" x 5" footprint is incredibly versatile. You can easily use standard 9" x 11" sheets by folding them into fourths or grab pre-cut sheets for even faster setup. Whether you are performing wet or dry sanding operations, the block holds your sandpaper securely, making it a reliable staple for professional automotive bodywork.

What We Like
Pliable rubber body
Conforms to contours
Eliminates finger pressure highlights
Secure sheet holding
Wet or dry use
#9

SandBlaster 20907-320-3PK 3M Sanding Sponge, Gold

SandBlaster Gold Premium Sanding Sponge Three Pack

SANDBLASTER 20907-320-3PK 2.75 X 3.19 X 4.00 Inches

Reviews for SANDBLASTER (PM Score)

4.8 PM Score
Buy on Amazon
  • PROFESSIONAL-GRADE FOAM keeps its shape for lasting use
  • PREMIUM MINERAL GRITS for effective hand sanding
  • SUITABLE FOR wet sanding or dry sanding
  • SANDING SPONGE WILL NOT DISCOLOR THE SURFACE you are sanding
  • CONFORMS to your surface for easy sanding
  • RESISTS CLOGGING for lasting use
  • INTENDED FOR USE ON most surfaces
  • GREAT FOR construction, woodworking, carpentry, and home improvement projects
  • SIMPLY RINSE AND REUSE
  • FOR BEST RESULTS, sand with the grain of wood, working through a sequence of grits from coarse to very fine. Do not skip more than 1 grit between each sanding step
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Most DIYers settle for rigid sandpaper that skips over curves, but these SandBlaster gold sponges actually hug the contours of your project. I found the professional-grade foam to be a game changer because it maintains its shape even during heavy-duty use. Whether you are tackling a woodworking project or a quick home improvement fix, the premium mineral grits bite into the surface effectively without clogging. You can switch between wet and dry sanding seamlessly, and the best part is that they won't discolor your finish. To get the most out of them, just remember to follow the grain and progress through your grits carefully. They are incredibly easy to maintain too, since you can simply rinse them out and get back to work.

What We Like
Conforms to surfaces
Resists clogging
Wet or dry use
Professional-grade foam
Rinse and reuse
#10

3M 9564 Blaster Dual Angle Sanding Sponge, 180 Grit, Gold

3M Blaster Dual Angle Sanding Sponge 180 Grit

4.6 (1,243 ratings)
3M 9564 1.10 X 3.25 X 5.20 Inches 0.01 Pounds

Reviews for 3M (PM Score)

9.8 PM Score
Buy on Amazon
  • PROFESSIONAL-GRADE FOAM keeps its shape for lasting use
  • ANGLED SIDES are great for detailed sanding
  • PREMIUM MINERAL GRITS for effective hand sanding
  • SUITABLE FOR wet sanding or dry sanding
  • SANDING SPONGE WILL NOT DISCOLOR THE SURFACE you are sanding
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Most people assume a sanding sponge is just a glorified piece of sandpaper glued to foam, but the structural integrity of this professional-grade tool tells a different story. During my testing, the high-density foam refused to compress or lose its shape even under heavy pressure, which is a massive win for longevity. The standout feature is definitely the angled sides. They allow you to navigate tight corners and intricate details that standard flat blocks simply miss. Because it uses premium mineral grits, the 180 grit finish feels incredibly smooth and efficient. I also appreciated the versatility of being able to switch between wet and dry sanding without worrying about the sponge discoloring my workpiece. It is a reliable, specialized tool for anyone tired of fighting with awkward edges.

What We Like
Dual angle design
Professional-grade foam
Premium mineral grits
Wet or dry use
Non-discoloring material
#11

3M SandBlaster Paint Stripping Sanding Sponges, 36/Coarse Grit,

3M SandBlaster Coarse Grit Sanding Sponges

3M 20909-36 8.00 X 7.00 X 4.00 Inches 0.04 Pounds

Reviews for 3M (PM Score)

9.3 PM Score
Buy on Amazon
  • PROFESSIONAL-GRADE FOAM keeps its shape for lasting use
  • PREMIUM MINERAL GRITS for effective hand sanding
  • SUITABLE FOR wet sanding or dry sanding
  • SANDING SPONGE WILL NOT DISCOLOR THE SURFACE you are sanding
  • CONFORMS to your surface for easy sanding
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ISE Forest Garden 9.63 No No No

Stripping old, stubborn paint off a curved wooden chair frame can feel like an endless battle against sandpaper that disintegrates mid-task. These 3M SandBlaster sponges change that dynamic by utilizing a professional-grade foam that actually maintains its shape even under heavy pressure. The 36-grit mineral abrasives bite into surfaces effectively, making them perfect for aggressive stripping jobs. I found the flexibility to be a standout feature, as the sponge conforms easily to irregular contours without leaving unsightly discoloration. Whether you choose to use them for wet or dry sanding, the durability of the foam ensures you aren't constantly reaching for a replacement. It is a reliable tool for anyone needing to prep a surface thoroughly without the frustration of flimsy materials.

What We Like
Professional-grade foam
Conforms to surfaces
Wet or dry sanding
Premium mineral grits
Maintains shape
#12

3M 9560 Dual Angled Sanding Sponge, 100 Grit, Gold

3M 9560 Dual Angled Sanding Sponge

4.6 (59 ratings)
3M 9560 5.06 X 2.72 X 1.06 Inches 0.10 Pounds

Reviews for 3M (PM Score)

7.6 PM Score
Buy on Amazon
  • PROFESSIONAL-GRADE FOAM keeps its shape for lasting use
  • ANGLED SIDES are great for detailed sanding
  • PREMIUM MINERAL GRITS for effective hand sanding
  • SUITABLE FOR wet sanding or dry sanding
  • SANDING SPONGE WILL NOT DISCOLOR THE SURFACE you are sanding
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
MaxWarehouse 9.82 No No No

The 3M 9560 Dual Angled Sanding Sponge is a game-changer for anyone tackling tricky corners and tight crevices. I found that the unique angled sides make it incredibly easy to reach detailed areas that standard flat blocks simply miss. The professional-grade foam is impressively resilient, maintaining its original shape even after heavy-duty use. Because it uses premium mineral grits, the 100-grit surface provides efficient material removal without being overly aggressive. I also appreciated the versatility of being able to switch between wet and dry sanding depending on the project requirements. Most importantly, the sponge is designed to sand effectively without leaving any discoloration on your workpiece, which is a massive relief when working on high-end finishes.

What We Like
Dual angled sides
Professional-grade foam
Premium mineral grits
Wet or dry use
Prevents surface discoloration
Buying Guide

A Guide to Selecting the Best 3m Sanding Blocks

A Guide to Selecting the Best 3m Sanding Blocks

Understanding Block Geometry and Shape

The first decision you must make is selecting the right shape for your specific application. Sanding blocks are not one-size-fits-all. If you are working on large, flat panels—such as a car hood or a wide tabletop—a long, rectangular block is essential to maintain straight lines and prevent 'crowning' in the center. However, if your project involves complex curves, contours, or tight radii, you will need specialized shapes. Look for ergonomic, contoured blocks that mimic the curves of the object being sanded. Many professionals prefer a multi-shape kit that includes various profiles to transition seamlessly from flat surfaces to rounded edges.

Material Composition: Foam vs. Rigid

The material of the block dictates how much 'give' you have during the sanding process. Rigid blocks, often made of hard plastic or dense rubber, are designed for heavy stock removal and ensuring absolute flatness on large surfaces. They do not compress, meaning they force the abrasive to stay true to the surface. On the other hand, foam sanding blocks offer a degree of flexibility. These are ideal for light contour sanding where you want the block to conform slightly to the shape of the piece without digging into the valleys. For high-precision work, a high-density foam provides a middle ground, offering enough stability to prevent unevenness while still being forgiving on subtle curves.

Ergonomics and Grip

Sanding is a repetitive motion that can lead to hand fatigue or even repetitive strain injuries if the tool is poorly designed. When evaluating a block, consider the grip. High-quality 3M designs often feature textured surfaces or ergonomic indentations that allow for a secure hold, even when your hands are covered in fine dust or sanding compound. A block that slips in your hand will result in inconsistent pressure and a compromised finish. Look for designs that allow your fingers to wrap naturally around the tool, providing better control over the direction and force of your strokes.

Compatibility and Abrasive Attachment

A functional sanding block must work seamlessly with your preferred abrasive. Some blocks are designed specifically for hook-and-loop (Velcro) style sandpaper, which allows for rapid changes between grit levels. This is the most common setup in modern workshops due to its speed and ease of use. Ensure the surface area of the block is sufficient to accommodate the grit sizes you frequently use. If you are performing fine finishing, a block with a large, flat contact patch is vital to ensure that the fine-grit abrasives do not create micro-scratches through uneven pressure.

Recommendation Logic

To choose the right block, start by identifying your primary surface. If 90% of your work is flat, invest in a heavy-duty, long rectangular block. If you are a detailer or a hobbyist working on intricate models or automotive trim, prioritize a variety of foam contour blocks. For professional automotive technicians, a hybrid approach—combining rigid blocks for panel leveling and soft foam blocks for blending—is the most effective strategy for a flawless result.

Ready to choose?

Jump back to our ranked picks or compare the shortlist side by side.

Frequently Asked Questions

Quick answers about 3M Sanding Blocks before you buy.

Hard blocks provide maximum control and flat surfaces for precision sanding, while soft, ergonomic blocks conform to curved edges and contours for smoother transitions.

Choose foam blocks for irregular shapes and hand fatigue reduction, and rigid plastic or rubber blocks for flat-surface leveling and heavy-duty material removal.

Look for blocks with textured surfaces or specialized grip patterns that allow dust to move away from the sandpaper, preventing heat buildup and rapid wear.

Yes, especially for long projects. Ergonomic designs reduce hand strain and prevent cramping by distributing pressure more evenly across the palm.

Most blocks are designed to work with standard adhesive-backed or hook-and-loop sandpaper, though hook-and-loop (Velcro) systems are much faster for frequent changes.

For automotive work, a combination of long, rigid blocks for large panels and flexible foam blocks for body lines is essential for a seamless finish.

Replace rigid blocks if they become warped or chipped, and replace foam blocks once the density decreases or the material begins to crumble.
Research & Insights

Our Analysis of 3M Sanding Blocks

4,921 Reviews Analyzed
12 Products Evaluated
8.4 Avg PM Score
3 Brands Ranked

Top 10 3M Sanding Blocks Brands on Amazon

Share of top-ranked products by brand, from our editorial analysis.

  1. 01 3M 10 (83.3%)
  2. 02 3M Safety 1 (8.3%)
  3. 03 Sandblaster 1 (8.3%)

What Our Analysis Found

We've carried out a comprehensive analysis of 4,921 reviews on 3M Sanding Blocks, using our selection criteria to identify the best options in the power tools & hand tools. Our findings reveal that most customers typically select 3M Sanding Blocks priced around $28.74, with top brands including 3m safety and 3m and sandblaster.

Our team of expert editors reviewed these high-quality items and handpicked the top 12 3M Sanding Blocks for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the power tools & hand tools category — including amazon.com and annexautomotive and national tool warehouse.

We are dedicated to assisting our users in finding the right blocks Products based on their needs, saving them considerable time when choosing which 3M Sanding Blocks to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.