Best Roly Poly in 2026

Premium Rock Tumbling Media

Protects & Cushions Stones

Improves Tumbling Action

Poly Pellets for Stuffing & Filling Weighted Blankets, Bean Bags, Rock Tumbling, Toys, Lifelike Dolls & other Crafts

Machine Washable & Durable Craft Pellets

Premium Quality Plastic Pellets, Made in the USA

100% VIRGIN, USA-MADE POLY PLASTIC PELLETS: Pure and safe, our prime plastic pellets are Non-toxic, BPA Free, Hypoallergenic & Odorless. Made in the USA of prime select grade polymers. Beware of other poly beads that may be made from recycled plastic.

WASHER & DRYER SAFE: Feel confident that your items will last for years to come. Our plastic craft stuffing beads are safe to wash & dry in residential and commercial machines.

NON-POROUS: Roly Poly plastic filler beads are non-pourous and will not break down like organic materials (corn, rice, beans, etc). They can be easily cleaned, sanitized and reused.

PROTECT & CUSHION YOUR STONES: Our rock tumbling media is designed to be used as a filler and cushion for polishing stones in rotary tumblers. The plastic pellets help protect and pillow your rocks during tumbling. They are especially important for soft, delicate or brittle stones during every stage of the polishing process. Can be used and any stage in addition to grit and other media. A must-have supply for any rock hound, hobbyist or professional gem cutter!

REDUCE TUMBLING NOISE: Rock tumblers can be noisy and one way to turn down the volume is to add our soft, plastic rock tumbling pellets to your loads.

PREMIUM QUALITY MEDIA: Our smooth, round plastic pellets for rock tumblers are made from virgin polymers and not from recycled material. Beware of recycled material as it may not last as long and could be contaminated with other substances that could affect your results. BPA-free, food packaging grade plastic.

2,000 SQUARE FEET JUMBO ROLL: 20’ x 100’ Heavy Duty & Reusable 6 MIL Plastic Sheeting packaged as a continuous roll on a carboard core

6 MIL THICK, HEAVY DUTY: Extra thick 6 Mil (.006 in) Made of Durable Low-Density Polyethylene (LDPE)

MULTI-PURPOSE: Perfect for Industrial, Residential, Construction, Masonry, Agriculture and Landscaping Projects. Use as a Moisture Barrier, Vapor Barrier, Protection Barrier for - Drywall, Flooring, Concrete Curing, Drop Cloth, Spray Barrier, Etc. Great for a DIY lawn slip and slide

Multi-Purpose Sandblasting Glass Beads: Our #8 Spec (70-100 GRIT) glass bead is our best-selling blasting abrasive media. Used for cleaning, peening, deburring, descaling, finishing, and removing light rust, chipped paint, scale, oxidation and calcium deposits. Ideal for preparing metal surfaces for painting and powder coating. Works well on pistons, engine blocks, cast iron, aluminum, steel, tools, machinery, automotive and airline parts, pipes, dies, castings, cutting tools, etc.

Environmentally Safe: Eco-friendly, inert and silica-free, our soda lime glass beads are a prime choice. The sandblasting media is reusable and 100% recyclable. Feel better knowing you are not using potentially dangerous chemical or acid treatments.

Cleans Without Damage or Residue: Glass bead blasting generally provides a smooth, satin finish. Cleans without damaging surfaces. Less aggressive than other mediums with a low risk for etching or warping. Our glass blasting microbeads will not penetrate, contaminate or leave residue on surfaces.

AUTHENTIC BIRTHSTONE SPECIMENS - This dig kit is truly special! Inside the beautifully designed dig brick are 12 precious and semi-precious gemstones. Your kids will love digging and discovering these dazzling specimens!

A SPECIAL GEMSTONE FOR EVERYONE - Every kid will find their own special birthstone in this gemstone dig kit! Garnet, diamond, ruby, pearl, sapphire, amethyst, emerald, opal, blue topaz, citrine, aquamarine, and peridot are all hidden within.

A COMPLETE SCIENCE KIT - This STEM kit is easy to use, thanks to the dig tool, brush, magnifying glass, and easy-to-follow instructions. A detailed learning guide teaches kids about each stone, too. A display bottle with keychain is also included.

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

MASSIVE SCIENCE KIT FOR CURIOUS KIDS - More than 15 experiment activities including dueling water tornadoes, building an erupting volcano, growing a crystal, two geologic dig kits, and more

ENOUGH TO GO AROUND - This science lab allows kids to conduct multiple experiments and is great to share with family, friends, or classmates; you will enjoy the magic of discovery together

THE SECRET IS THE SCIENCE - A detailed learning guide teaches the science at work in the experiments, allowing your child to develop a deep, lasting appreciation for a variety of Earth sciences

ULTIMATE ROCK COLLECTION FOR KIDS - A perfect standalone collection or addition to any kid’s rock collection. Includes rough and polished samples of aventurine, rose quartz, stunning snowflake obsidian, desert rose, red jasper, blue quartz, pumice, and geode specimens as well. Makes an excellent STEM gift for girls and boys!

GENUINE FOSSILS - real fossils include prehistoric gastropods, ammonites, clams, brachiopods, and more. The included magnifying glass, full-color learning guide, and identification sheet will help you to sort and identify every rock, gemstone, mineral, and fossil in the collection.

REAL GEODES – Discover crystals treasures! Each kit contains one broken geode and two unbroken geode specimens for you to crack open yourself. Geology doesn’t get more exciting than breaking open rocks and finding crystal treasures.

DIG UP PREHISTORIC FOSSILS – These genuine fossils are millions of years old! Dig for dinosaurs, sharks, brachiopods, mosasaurs, ammonites, and more. This Mega Fossil Dig Kit is one of our top learning toys, providing hours of educational fun, and helping to inspire a lifelong love of learning!

EXPLORE PALEONTOLOGY – Excavate incredible, real fossils using the included tools of the trade: a chisel, brush, and magnifying glass. This kit makes an excellent STEM gift for boys and girls!

16-PAGE LEARNING GUIDE - This full color, detailed learning guide illustrates how fossils are formed and helps young scientists identify each specimen as it’s discovered. National Geographic educational toys make science and learning fun and are the perfect STEM activity for kids!

DISCOVER CRYSTAL TREASURES - Give your child the thrill of digging in a real gem mine as they excavate real crystal treasures. This educational engaging activity emphasizes fun, exploration, and discovery!

FIND 15 AMAZING GEMSTONES - Including pyrite, amethyst, tiger’s eye, fluorite, quartz, obsidian, aventurine, and more. Unlike other kids toys, the Mega Gemstone Dig Kit seamlessly blends educational value with fun!

A COMPLETE LEARNING ACTIVITY – This Mega Dig Kit includes everything you need to keep kids digging and learning for hours, including a dig brick packed with gemstones, a chisel, a brush, and a magnifying glass to inspect these amazing specimens!

CREATE YOUR OWN GEMSTONES - Make any stone sparkle and polish everyday rocks into dazzling gemstones! This rock tumbler kit makes it fun and easy to turn rough rocks into beautifully polished gemstones, thanks to its simple operation and durable design.

A TUMBLER THAT'S MADE TO LAST – Our high-quality tumblers are made with a durable motor that’s designed to last for years. The leakproof rubber barrel reduces sound, making it 75% quieter than other plastic models. An excellent STEM activity for kids.

A COMPLETE HOBBY TUMBLING KIT - Everything you need to create polished gemstones: the tumbler, four polishing grits, sifter, nine types of real rough gemstones, plus a detailed full-color learning guide. Makes a great gift for girls and boys!

DISCOVER CRYSTAL TREASURE - Break open these rocks to reveal amazing crystals inside! Geology doesn’t get more exciting than breaking open rocks and finding crystal treasures. Ag great STEM activity that also makes an excellent gift for girls and boys!

COLORFUL VARIETY – Geodes can form with a wide variety of crystals inside. These geodes have been hand-selected to bring you the best variety available.

100% NATURAL GEODES – These real specimens may be as big as a tennis ball, or as small as a ping-pong ball. Kids will love the thrill of cracking them open to see the natural beauty inside. This STEM activity emphasizes fun and discovery!

YOUR KIDS WILL ENJOY HOURS OF FUN - This extra-large dig brick has 20 incredible gemstone and fossil specimens, allowing your kids to experience the thrill of discovery over and over again. It's sure to become one of their favorite educational activities

REAL SPECIMENS YOUR KIDS WILL TREASURE - This digging kit is so exciting because every specimen is genuine. Your children will uncover genuine gemstones and fossils that are millions of years old, making this a truly unforgettable educational toy

EVERYTHING YOUR CHILD NEEDS – This National Geographic science kit has all the tools your child needs to dig like the pros! In addition to the dig brick, there’s a chisel, brush, and magnifying glass. Hands-on learning has never been so fun

THE ULTIMATE ROCK COLLECTION KIT - This STEM science kit lets kids explore 2 pounds of magnificent geological specimens! These include agate, amethyst, blue quartz, rose quartz, tiger's eye, sodalite, hematite, various jasper varieties, and more!

POLISHED GEMS REVEAL HIDDEN BEAUTY - This collection of stones and crystals is dazzling! The polished luster of the rocks and crystals in this kit make it possible to see minute details, revealing the hidden beauty of each rock and crystal inside!

GREAT HOME DECOR AND CRAFT ACCESSORIES - These rocks and crystals have many uses! They make great aquarium rocks, and are also good for plant and candle arrangements. Use them as gemstone home decor or with a jewelry making kit! The possibilities are endless!

GEMSTONES OF NINE VARIETIES: Tiger’s Eye, Amethyst, Aventurine, Rose Quartz, Red Jasper, Agate, Sodalite, Dalmatian Jasper, Black Jasper. (3lb in total)

FOUR GRADES OF GRIT: Coarse, Medium, Fine, Polish. Transform your stones from rough rocks to dazzling gemstones!

JEWELRY FASTENINGS: 1 Necklace, 1 set of Earrings, 1 Keychain, 1 Ring. Create custom jewelry from your newly polished gemstones!

✅HIGH- QUALITY Rock, Gem & Mineral Collection ACTIVITY KIT includes over 200 pcs with full-color educational identification sheet and Rock book for hours of fun STEM-based learning!

✅FUN & EDUCATIONAL SCIENCE TOY--rock & mineral TREASURES are mixed with clean gravel to simulate a real ROCK HUNT! Match the rocks to the ID sheet and learn interesting gem facts!

✅BREAK OPEN GEODES and find beautiful crystals inside! Also included: SHARK teeth FOSSILS, stone ARROWHEADS, amethyst, quartz point, tiger eye, fool’s gold, rose quartz, and more!

PUT A DAZZLING POLISH ON YOUR ROCKS with Polly Plastics rock tumbler grit and polish refill. Our one-of-a-kind rock polisher kit contains four different kinds of grits to provide initial shaping, smoothen the rock surface, pre-polish the rocks and finally polish the rocks for a professional-looking finish. Great for kids and adults alike.

PACKAGE INCLUDES - 1 lb. 60/90 coarse silicon carbide grit, 1 lb. 180/220 medium silicon carbide grit, ½ lb. 500 fine silicon carbide, ½ lb 1200 aluminum oxide polish, 1.5 lbs. non-abrasive ceramic filler cylinders and an easy-to-follow instructions manual. Polly Plastics also have 2-pack grit and polish refills available for each stage of the rock tumbling process, refills of our ceramic media and many more rock tumbling products. Check out our storefront.

GRIT SOLD BY WEIGHT NEEDED FOR EACH STEP – Steps 1 & 2 are 1 lb. each and steps 3 & 4 are ½ lb. each, but all are sold in the same size jars for packaging consistency. The different weights, along with different densities, will mean that jars of rock tumbling grit will not have equal amounts of fullness.

⭐ Non-Abrasive Ceramic Small Tumbling Media. 3/16” dia. X 3/8” long, angle cut cylinders.

⭐ Perfect for protecting stones or filling while rock tumbling. Cushions, quiets and improves tumbling action. Works with all tumbler types.

⭐ No need to keep separate for each stage – rinse and use the same batch through all the tumbling stages. Non-toxic, non-static and non-residue pellets are dryable and easy to reuse.

ENORMOUS VARIETY - This rock tumbler refill kit has 5 pounds of unpolished rocks and gemstones consisting of a 1-pound gemstone mix, 1-pound agate mix, 1-pound Madagascar mix, 1-pound jasper mix, and 1-pound petrified wood mix

ROCK POLISHING GRIT – There are 20 total rock tumbler grit packets in the kit, enough for five complete tumbling cycles with any rock tumbler

JEWELRY SETTINGS – Once your rocks are polished, use the 5 included jewelry settings to create beautiful keepsakes or use the included storage pouch to keep your favorite specimens all in one place

COMPLETE ROCK TUMBLING MEDIA KIT - 4-Step grit pack with 3 pounds of total weight. Our universal grit is designed for any rock tumbler. Get up to five tumble batches from a standard 3lb barrel.

PACKAGE CONTAINS - 1 lb. 60/90 Coarse Silicon Carbide Grit, 1 lb. 180/220 Medium Silicon Carbide Grit, ½ lb. 500 Fine Silicon Carbide, ½ lb. 1200 Aluminum Oxide Final Polish.

GRIT SOLD BY WEIGHT NEEDED FOR EACH STEP – Steps 1 & 2 are 1 lb. each and Steps 3 & 4 are ½ lb. each but all are sold in the same size jars for packaging consistency. The different weights, along with different densities, will mean that jars will not have equal amounts of fullness.

REAL GEMSTONES FROM MADAGASCAR - 3 pounds of raw rocks includes rose quartz, labradorite, red jasper, yellow jasper, indigo gabbro, and polychrome jasper, quantities of each gemstone may vary

FOUR GRADES OF GRIT - Coarse, Medium, Fine, Polish. Transform your raw stones from rough rocks to dazzling gemstones, this refill kit also works with all rock tumblers

JEWELRY FASTENINGS - Additional rock tumbler accessories include 1 Necklace, 1 set of Earrings, 1 Keychain, 1 Ring to create custom jewelry from your newly polished gemstones

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 KIT - 4 Step grit pack and plastic filler for use in 15 lb. tumbler or five 3 lb. tumbles.

CONTAINS - 1 lb. 60/90 Coarse Silicon Carbide Grit, 1 lb. 180/220 Medium Silicon Carbide, Grit, ½ lb. 500 Fine Silicon Carbide, ½ lb. 1200 Aluminum Oxide Polish and 1 lb. of premium high-impact polypropylene plastic filler pellets. Protect and cushion fragile stones and reduce tumbling noise.

GRIT SOLD BY WEIGHT NEEDED FOR EACH STEP – Steps 1 & 2 are 1 lb. each and Steps 3 & 4 are ½ lb. each but all are sold in the same size jars for packaging consistency. The different weights, along with different densities, will mean that jars will not have equal amounts of fullness.

GEMSTONES, CRYSTALS, AND FOSSILS FOR KIDS - This kit is the perfect starter set or addition to any kid’s rock collection! It contains hundreds of real gems, cool rocks, and genuine prehistoric fossils and fascinating insight into each specimen.

A GEMSTONE DIG KIT THAT KIDS LOVE! This awesome science kit gives your child the thrill of digging in a real gem mine! They'll dig like real geologists with the included tools. Imagine discovering 15 awesome gemstones in this incredible dig brick!

CRYSTAL GROWING KIT WITH LIGHT-UP DISPLAY - Grow three vibrant crystals, then show them off on a sleek light-up display base! Kids get to see crystals take shape before their eyes, and will learn all about crystal science in our learning guide.

**4-Step grit pack with 3 pounds of total weight. Our universal grit is designed for any rock tumbler.

**Step 1 - 1 lb. 60 Coarse Silicon Carbide Grit, Step 2 - 1 lb. 180/220 Medium Silicon Carbide Grit, Step 3 - 1/2 lb. 500 Fine Silicone Carbide, Step 4 - 1/2 lb. 1200 Aluminum Oxide Polish.

**Packaged in 4 bottle to safely store unused product for later.

🎁 🎁 🎁 Belts are consumable, you can contact us for 3 EXTRA BELTS FOR FREE (𝐖𝐎𝐑𝐓𝐇 $𝟏𝟎). Reach out to us directly for help if there is a issue!

90-Day Refund Guarantee & 2-Year Warranty. 24 Hours Support: 𝘀𝘂𝗽𝗽𝗼𝗿𝘁@𝗸𝗼𝗺𝗲𝘀𝘁𝗼𝗻𝗲.𝗰𝗼𝗺.

DIVE INTO THE FUN ROCK TUMBLING: KomeStone rock tumbler is for turning rough raw rocks into smooth gemstones, you will be very excited to see the rocks changes with each cycle. That will be a good lesson on patience and geology for kids or a good idea for mom's jewelry making.

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

GEMSTONES OF 9 VARIETIES - Tiger's Eye, Amethyst, Aventurine, Rose Quartz, Red Jasper, Agate, Sodalite, Dalmatian Jasper, Hematite. (1lb in total)

FOUR GRADES OF GRIT - Coarse, medium, fine, polish. Transform your stones from rough rocks to dazzling gemstones!

JEWELRY FASTENINGS - 1 necklace, 1 set of earrings, 1 keychain, 1 ring. Create custom jewelry from your newly polished gemstones!