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Compatible with all tumblers - this complete 4-step rock tumbler grit refill kit works with all rock tumblers.
High-quality educational toys - national geographic is proud to make the highest quality hands-on science toys, and all our products are backed by exceptional service. If your experience is anything less than extraordinary, let us know so we can make it right for you! .

Respected quality - national geographic is proud to provide only the highest quality STEM toys and all our kits are backed by our 100% satisfaction guarantee.

Jewelry fastenings: 1 necklace, 1 Keychain, 1 set of Earrings, 1 Ring. Transform your stones from rough rocks to dazzling gemstones! Gemstones of nine varieties: tiger’s eye, Agate, Dalmatian Jasper, Rose Quartz, Amethyst, Sodalite, red jasper, Aventurine, Black Jasper.3

Complete kit 5 step grit pack and ceramic filler for use in 15 lb. Tumbler or five 3 lb. Includes 3. 5 pounds of polishing Grit + Poly Plastic Pellets. We're always here to help if any quality issues and about the rock tumbler grit kit.
Coarse grit, grit, pre-polish grit, Medium Grit, Polypropylene Plastic Poly Filler Pellets and Instruction Guide.5 steps just measure in the grit, add enough water to cover the stones, and tumble. Tumbles. Each to have pretty rocks/gems. Package contents 1 pound, step #3 pre-polish; 05 pounds, step #2 medium grit; 05 pounds, step #4 final polish.

Polypropylene Plastic Poly Filler Pellets 1/2 lb. Step #2 medium Grit 1 lb. Step #4 grit 1/2 lb, Instruction Guide. Complete rock tumbling medium kit: 3. 5 lbs. Easy to use: includes a clear instruction guide on how to use the grits and plastic pellets.

Complete professional rock tumbler grit kitwkturn rock polishing grit set comes with a 5-step grit kit and filler, medium grit, from coarse grit, to final polish grit. Comes with a small spoon for easy use.
Satisfaction guaranteeour rock tumbling grit kit, elegantly packaged, is designed to be a gift for children. Roll over and have fun with it. Beginner friendlywhether you are a professional rock tumbler or a beginner, universal grit, warm instructions are provided. Polishing your rock, pre-polish grit, glass and gems with ease.

Assorted gemstones, 4 grit bags, jewelry fasteners. Mega rock tumbler refill pack: includes everything needed to turn rough rocks into beautiful gemstones.


Package contents 1 pound, step #3 pre-polish; 05 pounds, step #1 coarse grit; 1 pound, step #4 final polish. Compared with poly plastic, ceramic filler can polish a more perfect stone.
Steps to polish rinse off raw stones - put stones into tumbler barrel - add grit - fill water to top of rocks - add 2/3 ceramic filler - close tumbler - tumble recommended for few days - rinse again and go to next grit. 4+1 one kit 4-step polishing grit pack and ceramic filler for use in 15 lb. Widely used the rock tumbler refill grit kit comes with enough high-quality silicon carbide grit to make a nice polish of rocks, gems, glass, etc.

No need to pour the material out, which possibly make a mess while doing so. Just measure in the grit, 7 days each to have pretty rocks / gems.
A scoop is included for the correct dose. This kit contains 2 lbs 60 coarse silicon Carbide Grit, 2 lbs 220 Medium Silicon Carbide Grit, 1 lb. 1200 aluminum Oxide Final Polish Grit. There are 4 total cycles, and tumble. They are neatly packaged and easy to read labels. Step 1, 60 coarse Silicon Carbide Grit. Compatible with all brand tumblers.
1. NATIONAL GEOGRAPHIC
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Rock Polishing Grit Media, Works with any Rock Tumbler, Polish Up to 20 lbs. of Rocks, Stone Polisher, Rock Polisher, NATIONAL GEOGRAPHIC Rock Tumbler Grit
#adNATIONAL GEOGRAPHIC #ad - For best results, use with National Geographic Rock Tumblers and rock tumbling supplies. 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.
More information #ad
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, glass, gems, and more. Easy to measure and store - Each rock tumbling grit stage is packaged in a wide-mouth container with secure, screw-top closure. High-quality educational toys - national geographic is proud to make the highest quality hands-on science toys, and all our products are backed by exceptional service. If your experience is anything less than extraordinary, let us know so we can make it right for you! .
Brand | NATIONAL GEOGRAPHIC #ad |
Manufacturer | JMW Sales, Inc. #ad |
Height | 5.3 Inches |
Length | 5.3 Inches |
Weight | 3 Pounds |
Width | 4.2 Inches |
Part Number | NGBULKGRIT |
Model | NGBULKGRIT |
More information #ad
2. NATIONAL GEOGRAPHIC
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Gemstone, 5 Jewelry Settings and Polishing Grit, NATIONAL GEOGRAPHIC Rock Tumbler Refill – 5 Pound Mix of Rocks and Gemstones for Rock Tumblers, and More, Petrified Wood, Jasper, Includes Agate
#adNATIONAL GEOGRAPHIC #ad - Rock polishing grit – there are 20 total rock tumbler grit packets in the kit, enough for five complete tumbling cycles with any rock tumbler. Detailed learning guide – the learning guide includes polishing instructions along with fascinating information about the stones in the kit.Respected quality - national geographic is proud to provide only the highest quality STEM toys and all our kits are backed by our 100% satisfaction guarantee.
More information #ad
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. Enormous variety - this rock tumbler refill kit has 5 pounds of unpolished rocks and gemstones consisting of a 1-pound gemstone mix, 1-pound Madagascar mix, 1-pound agate mix, 1-pound jasper mix, and 1-pound petrified wood mix.Brand | NATIONAL GEOGRAPHIC #ad |
Manufacturer | JMW Sales, Inc. #ad |
Height | 5.9 Inches |
Length | 6.9 Inches |
Weight | 6.5 Pounds |
Width | 6.1 Inches |
Part Number | NGWORLDREFILL |
Model | NGWORLDREFILL |
Warranty | National Geographic Toys is proud to provide a 100% satisfaction with all our products so that you can buy with confidence. |
More information #ad
3. NATIONAL GEOGRAPHIC
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NATIONAL GEOGRAPHIC Rock Tumbler Mega Refill Kit, 3lbs Gemstones of 9 Varieties Including Tiger's Eye, Amethyst & Quartz, 4 Grades of Grit, Jewelry Fastenings & Detailed Learning Guide
#adNATIONAL GEOGRAPHIC #ad - Learning guide: our learning guide will teach you all about these unique gemstone specimens and includes many amazing and fascinating facts. Four grades of grit: coarse, Fine, Medium, Polish.Jewelry fastenings: 1 necklace, 1 Keychain, 1 set of Earrings, 1 Ring. Transform your stones from rough rocks to dazzling gemstones! Gemstones of nine varieties: tiger’s eye, Agate, Dalmatian Jasper, Rose Quartz, Amethyst, Sodalite, red jasper, Aventurine, Black Jasper.3
More information #ad
3lb in total. Create custom jewelry from your newly polished gemstones! Satisfaction guaranteed – the national geographic stem series provides kids high-quality educational toys that are a whole lot of fun! If your experience is anything less than extraordinary, let us know so we can make it right for you.Brand | NATIONAL GEOGRAPHIC #ad |
Manufacturer | JMW Sales, Inc. #ad |
Height | 3 Inches |
Length | 3 Inches |
Width | 8 Inches |
Part Number | NGGEMREFILLMEGA |
Model | NGGEMREFILLMEGA |
Warranty | National Geographic Toys is proud to provide a 100% satisfaction with all our products so that you can buy with confidence. |
More information #ad
4. Brave Finder
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5-Steps for Tumbling Stones, Stone Polisher 3.5 Pounds Polishing Grits + Poly Plastic Pellets, Compatible with Any Brand Tumbler, Rock Tumbler Refill Grit Media Kit
#adBrave Finder #ad - The only variable is how much of the product to use in your rock tumbler. Tips: the different weights and densities, Step #1 Coarse Grit; 1 Pound, will mean that jars will not have equal amounts of fullness.Complete kit 5 step grit pack and ceramic filler for use in 15 lb. Tumbler or five 3 lb. Includes 3. 5 pounds of polishing Grit + Poly Plastic Pellets. We're always here to help if any quality issues and about the rock tumbler grit kit.
More information #ad
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. Coarse grit, grit, pre-polish grit, Medium Grit, Polypropylene Plastic Poly Filler Pellets and Instruction Guide.5 steps just measure in the grit, add enough water to cover the stones, and tumble. Tumbles. Each to have pretty rocks/gems. Package contents 1 pound, step #3 pre-polish; 05 pounds, step #2 medium grit; 05 pounds, step #4 final polish.
Brand | Brave Finder #ad |
Manufacturer | Brave Finder #ad |
Part Number | LE |
More information #ad
5. Dan&Darci
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Rocks Polishing Refills for Any Brand Rock Tumblers, Rock Polish Tumbling Supplies Set, Dan&Darci Rock Tumbler Grit Refill Kit, Stone Polisher, 3.5 Pounds Grits Media + Poly Plastic Pellets
#adDan&Darci #ad - 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 #3 pre-polish grit 1/2 lb.Polypropylene Plastic Poly Filler Pellets 1/2 lb. Step #2 medium Grit 1 lb. Step #4 grit 1/2 lb, Instruction Guide. Complete rock tumbling medium kit: 3. 5 lbs. Easy to use: includes a clear instruction guide on how to use the grits and plastic pellets.
More information #ad
Compatible with all rock tumblers: can be used in tumblers from any brand: Dan&Darci, Elenco, Lortone, Smithsonian, National Geographic, Thumler and more.100% satisfaction guaranteed: love it, or your money back! If you are not satisfied with the kit, we'll refund you 100% of the money, no questions asked.Brand | Dan&Darci #ad |
Manufacturer | Dan&Darci #ad |
Height | 1.89 Inches |
Length | 10.32 Inches |
Width | 5.55 Inches |
Part Number | DD-011 |
Model | DD-011 |
More information #ad
6. WKTURN
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Rock Tumbler Set 2.0 for Any Brand of Rock Polisher, WKTURN Rock Tumbler Grit Set, Rock Tumbler Grit Polish Refill, 4 Basic Step Tumbling Media Coarse / Medium Grit / Pre-Polished / Final Polish
#adWKTURN #ad - Easy to storageeach step of the rock polishing supplie is packaged in a reusable bottle container, making it easier to store than bag packaging and preventing mess. Rock tumbler grit and polish refill, compatible with all rock tumblers.Complete professional rock tumbler grit kitwkturn rock polishing grit set comes with a 5-step grit kit and filler, medium grit, from coarse grit, to final polish grit. Comes with a small spoon for easy use.
More information #ad
Easy to usestage 1 coarse grit to initially shape the raw stone; stage 2 medium grit to smooth the surface of the stone; stage 3 pre-polished stone; stage 4 final polish to get your own stone. As an educational toy accessory, so buy with confidence, we offer a lifetime after-sales service, rock tumbler media. Satisfaction guaranteeour rock tumbling grit kit, elegantly packaged, is designed to be a gift for children. Roll over and have fun with it. Beginner friendlywhether you are a professional rock tumbler or a beginner, universal grit, warm instructions are provided. Polishing your rock, pre-polish grit, glass and gems with ease.
Brand | WKTURN #ad |
Manufacturer | WKTURN #ad |
Part Number | ML20-01 |
More information #ad
7. Dan&Darci
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0.5 lb, Jewelry Fasteners, Compatible with All Tumblers Rock Tumbling Supplies, 4 Grit Levels, Dan&Darci Mega Rock Tumbler Refill Kit, 9 Varieties of Gems
#adDan&Darci #ad - 4 grit levels: grade 1: coarse, grade 3: Pre-polish, grade 2: Medium, and Grade 4: Polish. Includes 1/2 lb. Compatible with all rock tumblers: can be used in tumblers from any brand: Dan&Darci, Smithsonian, Thumler, Elenco, National Geographic, Lortone, and more.Assorted gemstones, 4 grit bags, jewelry fasteners. Mega rock tumbler refill pack: includes everything needed to turn rough rocks into beautiful gemstones.
More information #ad
Compatible with all rock tumblers. 9 varieties of gems 05 lb: includes agate, amethyst, aventurine, Red Jasper, Sodalite, dalmatian Jasper, Hematite, Rose Quartz, Tiger Eye.100% satisfaction guaranteed: love it, we'll refund you 100% of the money, or your money back! If you are not satisfied with the kit, no questions asked.Brand | Dan&Darci #ad |
Manufacturer | Dan&Darci #ad |
Part Number | DD-010 |
More information #ad
8. WireJewelry
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WireJewelry Madagascar Rock Tumbler Refill Kit, 1.5 Lbs. of Madagascar Stone Mix and 1 Batch of 4 Step Abrasive Grit and Polish
#adWireJewelry #ad - Rough stones average in size between 1. 5" to 2" with 20-30 Gram Weight. Grit batch size is based on 3 lbs Capacity Barrels, for Smaller Barrels Use Half of the Packet. 1.More information #ad
5 lbs madagascar stone mix, includes up to 15 Different Types of Stones from List in Description. Grit is premeasured & Packaged in Convenient Single Use Tear Packs. 1 batch of 4 step abrasive grit & Polish Coarse, Medium, Pre-Polish and Final Polish.Brand | WireJewelry #ad |
Manufacturer | WireJewelry #ad |
Part Number | G24-GR1-100 |
More information #ad
9. Brave Finder
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Polishing Grits, Rock Tumbler Refill Grit Kit, 4 Pounds Total Weight for Tumbling Stones Compatible with Any Brand Tumbler Stone Polisher, 4 Steps Grit Plus Ceramic Tumbling Filler Media
#adBrave Finder #ad - Win-win we're always here to help if any quality issues and about the rock tumbler grit kit. And it compatible with any brand tumbler or stone polisher. Detailed and ratios please refer to the instruction. Tips: the different weights and densities, Step #2 Medium Grit; 05 pounds, will mean that jars will not have equal amounts of fullness.Package contents 1 pound, step #3 pre-polish; 05 pounds, step #1 coarse grit; 1 pound, step #4 final polish. Compared with poly plastic, ceramic filler can polish a more perfect stone.
More information #ad
Updated version rock tumbler grit the upgrade ceramic tumbling filler can be reused-no need to add new ceramic particles in every stage. Includes 3. 5 pounds of polishing Grit + Ceramic Tumbling Filler Media. Steps to polish rinse off raw stones - put stones into tumbler barrel - add grit - fill water to top of rocks - add 2/3 ceramic filler - close tumbler - tumble recommended for few days - rinse again and go to next grit. 4+1 one kit 4-step polishing grit pack and ceramic filler for use in 15 lb. Widely used the rock tumbler refill grit kit comes with enough high-quality silicon carbide grit to make a nice polish of rocks, gems, glass, etc.
Brand | Brave Finder #ad |
Manufacturer | Brave Finder #ad |
Part Number | LE |
More information #ad
10. SACKORANGE
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Works with Any Rock Tumbler, 6 LBS Large Weight 4 Step Rock Tumbler Grit Set, Stone Polisher, Tumbling Media Refill-Coarse / Medium Grit / Pre-Polished / Final Polish, Rock Polisher
#adSACKORANGE #ad - Use the amount you need and set it back on the shelf for the next round. We suggest 2 tbsp of grit per pound of stones, 500 Fine Silicone Carbide Grit. Step 4, 220 medium Silicon Carbide Grit. Large amount of gritthis is a large amount of each size grit for the price.No need to pour the material out, which possibly make a mess while doing so. Just measure in the grit, 7 days each to have pretty rocks / gems.
More information #ad
The aluminum oxide is what really makes them shine providing you have done everything else correctly. Definitely they will not leak. Bottle caps are very secure. This kit comes with enough grit to complete approximately 16-20 lbs of rocks. A scoop is included for the correct dose. This kit contains 2 lbs 60 coarse silicon Carbide Grit, 2 lbs 220 Medium Silicon Carbide Grit, 1 lb. 1200 aluminum Oxide Final Polish Grit. There are 4 total cycles, and tumble. They are neatly packaged and easy to read labels. Step 1, 60 coarse Silicon Carbide Grit. Compatible with all brand tumblers.
Brand | SACKORANGE #ad |
Manufacturer | Sackorange-01 #ad |
Part Number | LE-04 |
More information #ad