Best Polly Plastics Rock Tumblers in 2026

HIGH QUALITY - This rock polisher grit refill pack comes with enough high-quality silicon carbide grit to put a dazzling polish on up to 20 lbs. of rocks, gems, glass, and more

EASY TO USE FOUR-STAGE ROCK GRIT - The first rock tumbling grit stage provides initial shaping, the second smooths rock surfaces, the third pre-polishes rocks, and the fourth provides the final polish

COMPATIBLE WITH ALL TUMBLERS - This complete 4-step rock tumbler grit refill kit works with all rock tumblers. For best results, use with National Geographic Rock Tumblers and rock tumbling supplies

TWO LBS. Clear poly pellets. Use to fill tumbler to improve tumbling action.

PREMIUM High Impact Polypropylene. Stands up to rough tumbling action. Protect and cushion fragile stones and reduce tumbling noise.

Non-toxic, non-static and non-residue pellets are dryable and easy to reuse – float to the top for easy cleaning.

Complete rock tumbling medium kit: 3.5 lbs. 4-step grit set and poly plastic pellets, to polish any rock. Packaged in easy-to-use-and-store bottles

Includes: Step #1 Coarse Grit (1 lb.), Step #2 Medium Grit (1 lb.), Step #3 Pre-polish Grit (1/2 lb.), Step #4 Grit (1/2 lb), Polypropylene Plastic Poly Filler Pellets (1/2 lb.), Instruction Guide

Compatible with all rock tumblers: Can be used in tumblers from any brand: Dan&Darci, Elenco, Lortone, National Geographic, Smithsonian, Thumler and more

[5 STEPS] Just measure in the grit, add enough water to cover the stones, seal the barrel, and tumble. The only variable is how much of the product to use in your rock tumbler. We suggest 2 tbsp of grit per pound of stones, which is a good rule of thumb.

[COMPLETE KIT] 5 Step grit pack and ceramic filler for use in 15 lb. tumbler or five 3 lb. tumbles. Coarse Grit, Medium Grit, Pre-polish Grit, Grit, Polypropylene Plastic Poly Filler Pellets and Instruction Guide.

[EASY TO USE] Includes a clear instruction guide on how to use the grits and plastic pellets.Large Amount of Grit, This is a large amount of each size grit for the price.

Premium Rock Tumbling Media

Protects & Cushions Stones

Improves Tumbling Action

Turn rough rocks into polished gems: Discover and learn the fun process of rock tumbling with the Advanced Rock Tumbler. Pour in the rough stones and grit and let the machine do its job!

Complete kit: Includes: rock tumbler machine, low-noise barrel (1 lb. capacity), 4 grit packets, 1/2 lb. assorted rough rocks, mesh strainer, jewelry fasteners, gem storage bag, and an illustrated easy-to-follow instruction and learning guide booklet.

Powerful quality: Runs on a powerful heavy duty motor that will last for a very long time, and includes a leak-resistant barrel that runs quieter than the other brands.

Belts are consumables, so we'd like to offer extra 5 belts for spare use. 𝐏𝐥𝐞𝐚𝐬𝐞 𝐚𝐝𝐝 𝐭𝐡𝐢𝐬 𝐥𝐢𝐬𝐭𝐢𝐧𝐠 𝐭𝐨 𝐲𝐨𝐮𝐫 𝐰𝐢𝐬𝐡 𝐥𝐢𝐬𝐭 𝐚𝐧𝐝 𝐭𝐡𝐞𝐧 𝐫𝐞𝐚𝐜𝐡 𝐨𝐮𝐭 𝐚𝐭: 𝐬𝐮𝐩𝐩𝐨𝐫𝐭@𝐢𝐤𝐨𝐨𝐥𝐬𝐭𝐨𝐧𝐞.𝐜𝐨𝐦 𝐭𝐨 𝐠𝐞𝐭 𝐭𝐡𝐞 𝐟𝐫𝐞𝐞 𝐛𝐞𝐥𝐭𝐬 (𝐰𝐨𝐫𝐭𝐡 𝟏𝟐𝐔𝐒𝐃).

2 Years Warranty - Special Bonus Just for You! The warranty covers accessories replacement, techical support, 𝟐𝟒/𝟕 𝐜𝐥𝐚𝐢𝐦 𝐡𝐨𝐭𝐥𝐢𝐧𝐞 and so on. 𝐌𝐚𝐤𝐞 𝐲𝐨𝐮𝐫 𝐦𝐨𝐧𝐞𝐲 𝐰𝐨𝐫𝐭𝐡 𝐞𝐯𝐞𝐫𝐲 𝐩𝐞𝐧𝐧𝐲.

START A TUMBLING JOURNEY -- Koolstone Rock Tumbler turn rough rocks into polished gems, then you will be very excited to see the stones change with each cycle. That's a fun process of rock tumbling and a family little project for parent-child endeavor.

★【4 Steps】Be Patient. There are 4 total cycles, 7 days each to have pretty rocks / gems. Step 1, 60 Coarse Silicon Carbide Grit. Step 2, 220 Medium Silicon Carbide Grit. Step 3, 500 Fine Silicone Carbide Grit. Step 4, 1200 Aluminum Oxide Grit. Just measure in the grit, add enough water to cover the stones, seal the barrel, and tumble. The only variable is how much of the product to use in your rock tumbler. We suggest 2 tbsp of grit per pound of stones, which is a good rule of thumb.

★【Large Amount of Grit】This is a large amount of each size grit for the price. This kit comes with enough grit to complete approximately 16-20 lbs of rocks. This kit contains 2 lbs 60 Coarse Silicon Carbide Grit, 2 lbs 220 Medium Silicon Carbide Grit, 1 lb. 500 Fine Silicone Carbide Grit, 1 lb. 1200 Aluminum Oxide Final Polish Grit. COMPATIBLE WITH ALL BRAND TUMBLERS.

★【Jars, Labels & a Scoop】Nice hard plastic jars with lids (as opposed to plastic bags). Bottle caps are very secure. Definitely they will not leak. Use the amount you need and set it back on the shelf for the next round. A scoop is included for the correct dose. No need to pour the material out, which possibly make a mess while doing so. They are neatly packaged and easy to read labels. Tip: you could put your tumbler on a foam pad to eliminate noise.

COMPLETE ROCK TUMBLING KIT - Everything you need to create polished gemstones: tumbler, low-noise barrel, gemstones (9 different types), four polishing grits, filler media, sifter, jewelry fastenings, detailed full-color learning guide.

TURN ROUGH ROCKS INTO POLISHED GEMS - Make any stone sparkle and polish everyday rocks into dazzling gemstones! Simple operation and durable design.

DURABLE QUALITY - This high-quality tumbler has a powerful motor that will last for years. Noise reducing leak-proof rubber barrel with stainless steel lid.

2 Pounds Plastic Pellets Rock Tumbling Media Plastic Filler

Packaged in durable, re-closable seal bags to prevent messy spills and to safely store

Non-toxic, non-static and non-residue pellets are dryable

DIVE INTO THE FUN ROCK TUMBLER KIT – Rock polisher kit is an fun and educational toy, that is suitable for kids and adults.Thanks to its simple operation and durable design, you can easily turn everyday rocks into dazzling polished gemstones and crystals.Let's create your own gems now!

COMPLETE ROCK TUMBLING KIT – Everything you need to create polished gemstones: tumbler, low-noise barrel,4 polishing refill grits, 1 Rock Tumbling Filler media, sifter, 10 types of real rough gemstones,jewelry fastenings,extra tumbler belt and a detailed full-color learning guide.

EASY TO USE – Simple instructions Digital LCD screens with a 9-Day Polishing shutoff feature & 3 Speed Settings for each tumbling cycle, make rock tumbling fun and easy. Control the number of days for each tumbling cycle with the one-touch timer and automatic shutoff feature, set it and forget it! This is a great gift for kids.

[Create Unique Gemstones] : EARTH'SCODE Rock Tumbler kit is a simple operation and a durable design that can help you easily polish and turn rough rocks into sparkle Gemstones, and crystals. Let's create your own gems now!

[Advanced Rock tumbler]: This rock tumbler comes with colorful easy-to-follow instructions, An updated feature - unique rotating button (Easy to operate),3- speed controls (Providing more granular tumbling results ), a 9-day timer (Setting time and automatically shut off when you desire),

[Durable Rock Tumbler]: The Professional tumbler stone polisher runs on a powerful motor with a leak-resistant rubber barrel that reduces sound and makes it 75% quieter than other plastic models, which are made to last a long time. just Pour in the rough stones and grit then let the machine do the job!

❤ {14 DAYS ENTIRE CYCLE } - (Our Stones)After thousands of tests in different density grip on all polishing cycles, we have configured the most effective polishing grit for each cycle through rigorous testing to create dazzling polishing results within 14 days (The entire cycle is 16 days shorter than other machines.)

❤ {TURN ROUGH ROCKS INTO GEMSTONES} -This rock polisher kit comes with our exclusive reusable TPE plastic Particles Our TPE plastic Particles play a vital role by filling the gaps between the stones in the tumbler. This not only increases the source of friction that the stones undergo, but also acts as a cushion to prevent the gemstones from hitting each other, Add them in the 2nd through 4th cycle for reduced rock breakage and an incredible shine.

❤ {3LB LARGE CAPACITY RUBBER BARREL }- built in durable motor, improved double coated leak-proof lining and reinforced stainless steel lid, nothing will accidentally spill or leak out. It’s also 75% quieter than most plastic barrels as it comes with a layer of tire rubber that absorbs sound.

We'll help with any issues. 𝐑𝐞𝐚𝐜𝐡 𝐨𝐮𝐭 𝐭𝐨 𝐮𝐬 𝐝𝐢𝐫𝐞𝐜𝐭𝐥𝐲 𝐟𝐨𝐫 𝐫𝐞𝐩𝐥𝐚𝐜𝐞𝐦𝐞𝐧𝐭 𝐨𝐫 𝐫𝐞𝐟𝐮𝐧𝐝, 𝐚𝐧𝐲 𝐢𝐬𝐬𝐮𝐞𝐬 𝐰𝐢𝐥𝐥 𝐛𝐞 𝐬𝐨𝐥𝐯𝐞𝐝 𝐭𝐢𝐦𝐞𝐥𝐲 𝐰𝐢𝐭𝐡 𝐚 𝐩𝐞𝐫𝐟𝐞𝐜𝐭 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧!

These grits are for 4 rounds of tumbling rocks: Cycle 1, Cycle 2, Cycle 3, Cycle 4.

Tumbling with different grits for each round help get mroe beautiful and shinning gemstones.

2 pounds of 120/220 Graded Silicon Carbide Grit (Step 2)

Compatible with ANY BRAND OF TUMBLER

Comes with FREE Polishing Instructions

Package include Step 1 Coarse Grit; Step 2 Medium Grit; Step 3 Pre-Polish;Step 4 Final Polish,A small spoon in step 3 bottle, 1 Bottle Plastic Pellets,1 Bottle Ceramic Filler Media, Total 4.5 Pounds.

Tips: The different weights and densities, will mean that jars will not have equal amounts of fullness.

Material: Step 1 Grit，Step 2 Grit，Step 3 Grit are Silicon Carbide，Step 4 is Aluminum Oxide,Plastic Pellets are resistant polypropylene,Ceramic Filler Media is High alumina porcelain.

10LB KIT CONTAINS: Step 1 Coarse Grit(2 LB); Step 2 Medium Grit(2 LB); Step 3 Pre-Polish(1.5 LB);Step 4 Final Polish(1.5 LB),Ceramic Filler(2 LB);Strong Polishing Beads(1 LB).

Compatible with ANY BRAND OF Rock Tumbler

Easy to Follow Step by Step Instructions

🔥【EASY TO USE & DURABLE】-Simple instructions and simple operation make rock tumbling fun and easy! 3-speed controls (providing more granular tumbling results), 9-day timer (with automatic shutoff feature and memory function), all displayed on clear LCD screens, letting you easily hone your settings for precise tumbling every time and no worries. Our rock tumbles use industrial high-standard materials and have a durable motor that survives 5000 cycles.

💎【CREATE YOUR OWN GEMSTONES】-After thousands of tests, we equip each cycle with the most suitable polishing grit and give the most suitable speed and time recommendations. Just when you don't think the stones can be any smoother, the grit will magically do the trick to make them smoother. Please follow our instructions and you will easily polish and turn rough rocks into sparkling Gemstones and crystals, DIY unique gifts such as bracelets, necklaces, rings, or home decorations as gemstones.

⚡【THE EXCLUSIVE 3LB BARREL 】-The improved double leak-proof closure barrel features a large 3LB large-capacity and an updated stainless-steel lid and reinforced cover, so nothing will accidentally spill or leak out. It’s also 75% quieter than most plastic barrels as it comes with a layer of tire rubber that absorbs sound. It is so compact that you will need a screwdriver (which comes in the box) to open it easily. And the thickened barrel will make the machine last longer.

Kit includes 80,220,600,grit Cerium Oxide polish and filler, for 8 - 10lbs of Gems.

HIGH QUALITY STRAIGHT GRADED Silicon Carbide for consistent results.

PREMIUM CERIUM OXIDE Polish ideal for a variety of Gem stones.

Plastic Pellets are resistant polypropylene, which can cushion the impact of stones on the machine and reduce the noise,Plastic Pellets Tumbling Filler Media are reusable, Just rinse and reuse.

Tips: The different weights and densities, will mean that jars will not have equal amounts of fullness.

Material :Step 1 60 Grit，Step 2 220 Grit，Step 3 500 Grit are Silicon Carbide，Step 4 is 1200 Grit Aluminum Oxide

ROCK TUMBLER FOR KIDS:Polishing the rough raw stones into beautiful smooth stones, rock tumbler kit will help you to discover the beauty hidden under the ordinary stones. With the jewelry accessories we prepare, create your own necklace and ring right away. It is a gift for 8 year old to develop patience, study geology, and create with their imagination

OPERATION: just pour in the grit, water, stone, set the polishing days with one click and the rock polisher tumbler will run automatically for different polishing recipes and steps, at the end you will get the perfect stone, you can apply the hand cream on the stone, which can make the stone more smooth and shiny

SIMPLER AND QUIETER: turn on the switch, one key to set the number of days to tumble, you can automatically run, simpler operation suitable for children; we use 100% soft rubber barrels that can absorb the impact of tumbling rocks, cover the noise reduction cover to reduce noise, 70% quieter than other rock polishing kit to improve the play experience