Best Rock Tumbler Refills In September 2026

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In this review, we evaluate the Best Rock Tumbler Refills available today. We have also included a comprehensive guide that helps you pick the best product. We hope that by going through the top 10 Best Rock Tumbler Refills reviews below, you can effectively narrow down your choice and find the most appropriate one you need.

To help you in your search, we have completed this list of the Best Rock Tumbler Refills.

Top Rated Best Rock Tumbler Refills Of 2026

Rank	Product Name	Score
1	NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit - Gemstone Mix of 9 varieties including Buy Now	9.7 Buy Now
2	NATIONAL GEOGRAPHIC Rock Tumbler Mega Refill Kit - 3lbs Gemstones of 9 Varieties Buy Now	9.5 Buy Now
3	Dan&Darci Rock Tumbler Grit Refill Kit - 3.5 Pounds Grits Media + Poly Buy Now	9.1 Buy Now
4	NATIONAL GEOGRAPHIC Rock Tumbler Refill - 3.28 Pounds Tumbling Grit Media for Stone Buy Now	8.8 Buy Now
5	Rock Tumbler Grit Kit and Ceramic Tumbling Filler Media | Polly Plastics Buy Now	8.6 Buy Now
6	Tonmp 3 Pounds Rock Tumbler Refill Grit Media Kit (4 Polishing Grits)| 4-Steps Buy Now	8.3 Buy Now
7	Rock Tumbler Refill Grit Media Kit (3 pounds) by Polly Plastics | 4-Steps Buy Now	8.1 Buy Now
8	NATIONAL GEOGRAPHIC Rock Tumbler Refill – Mega Madagascar Gemstone Pack, 3 lb of Buy Now	7.8 Buy Now
9	Fantasia Materials: 3 Pounds (Best Value) Bulk Rough Madagascar Stone Mix - Raw Buy Now	7.5 Buy Now
10	Sackorange 3 Pounds 4 Bottles Rock Tumbler Refill Grit Media Kit | 4-Steps Buy Now	7.2 Buy Now

1. NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit - Gemstone Mix of 9 varieties including

• Four grades of grit: coarse, medium, fine, polish. transform your stones from rough rocks to dazzling gemstones!
• Respected quality - national geographic is proud to provide only the highest quality toys and all our kits are backed by our 100% satisfaction guarantee
• Learning guide: our learning guide will teach you all about these unique gemstone specimens and includes many amazing and fascinating facts
• Jewelry fastenings: 1 necklace, 1 set of earrings, 1 keychain, 1 ring. create custom jewelry from your newly polished gemstones!
• Gemstones of nine varieties: tiger's eye, amethyst, aventurine, rose quartz, red jasper, agate, sodalite, dalmatian jasper, hematite. (1lb in total)

2. NATIONAL GEOGRAPHIC Rock Tumbler Mega Refill Kit - 3lbs Gemstones of 9 Varieties

• Gemstones of nine varieties: tiger's eye, amethyst, aventurine, rose quartz, red jasper, agate, sodalite, dalmatian jasper, hematite. (3lb in total)
• Jewelry fastenings: 1 necklace, 1 set of earrings, 1 keychain, 1 ring. create custom jewelry from your newly polished gemstones!
• Respected quality - national geographic is proud to provide only the highest quality toys and all our kits are backed by our 100% satisfaction guarantee
• 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, medium, fine, polish. transform your stones from rough rocks to dazzling gemstones!

3. Dan&Darci Rock Tumbler Grit Refill Kit - 3.5 Pounds Grits Media + Poly

• 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.
• 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.
• 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.
• Compatible with all rock tumblers: can be used in tumblers from any brand: dan&darci, elenco, lortone, national geographic, smithsonian, thumler and more.
• Easy to use: includes a clear instruction guide on how to use the grits and plastic pellets.

4. NATIONAL GEOGRAPHIC Rock Tumbler Refill - 3.28 Pounds Tumbling Grit Media for Stone

• High quality - this kit comes with enough silicon carbide grit to complete approximately 8-10 lbs of rocks.
• Compatible with all tumblers - this complete 4-step grit kit is perfect for use with rock tumblers of any brand!
• 4 courses of grit - take your stones from rough material to polished gems over a 4-step tumbling process
• Polish rocks and more - including quartz, jasper, tiger's eye, glass and more!
• Recommended use - we recommend approximately 2 tablespoons of grit per pound of rocks.

5. Rock Tumbler Grit Kit and Ceramic Tumbling Filler Media | Polly Plastics

• Made in the usa premium materials.
• Complete kit - 4 step grit pack and ceramic filler for use in 15 lb. tumbler or five 3 lb. tumbles.
• Beginner friendly - complete instructions included. 100% satisfaction guarantee on all our products.
• Strong spill-resistant packaging - packaged in durable, re-closable seal bags to prevent messy spills and to safely store unused product for later.
• Contains - 1 lb. 60 coarse silicon carbide grit, 1 lb. 180/220 medium silicon carbide, grit, lb. 500 fine silicone carbide, lb 1200 aluminum oxide polish and 1.5 lbs. porcelain ceramic filler cylinders. no need to keep ceramic separate for each stage rinse and use the same batch through all the tumbling stages.

6. Tonmp 3 Pounds Rock Tumbler Refill Grit Media Kit (4 Polishing Grits)| 4-Steps

• **packaged in 4 bottle to safely store unused product for later.
• **purchase with confidence. we proudly back our product with a 100% satisfaction guarantee
• **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.
• **the kits will work with all rock tumbler.makes high quality rock tumblers and materials.
• **4-step grit pack with 3 pounds of total weight. our universal grit is designed for any rock tumbler.

7. Rock Tumbler Refill Grit Media Kit (3 pounds) by Polly Plastics | 4-Steps

• Superior packaging - packaged in durable, re-closable seal bags to prevent messy spills and to safely store unused product for later.
• Made in the usa polly plastics is an american company with american sourced materials for superior quality control and reduced risk of contaminants.
• Package contains - 1 lb. 60 coarse silicon carbide grit, 1 lb. 180/220 medium silicon carbide grit, lb. 500 fine silicone carbide, lb. 1200 aluminum oxide final polish.
• 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.
• Beginner friendly - complete instructions included with rock tumbling tips. 100% satisfaction guaranteed.

8. NATIONAL GEOGRAPHIC Rock Tumbler Refill – Mega Madagascar Gemstone Pack, 3 lb of

• Skill level: beginner
• 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
• 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
• 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
• Learning guide - our learning guide will teach you all about these unique gemstone specimens and includes many amazing and fascinating facts
• 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

9. Fantasia Materials: 3 Pounds (Best Value) Bulk Rough Madagascar Stone Mix - Raw

10. Sackorange 3 Pounds 4 Bottles Rock Tumbler Refill Grit Media Kit | 4-Steps

• --0.5 lb. 500 fine silicone carbide,
• -- 1 lb. 220 medium silicon carbide grit,
• --0.5 lb 1200 aluminum oxide final polish.
• -- 4-step grit pack with 3 pounds of total weight.
• --1 lb. 60 coarse silicon carbide grit,