Can Gemfoam be purchased separately?

Yes, we do sell the Polishing Foam separately.

What is the difference between this and product # ngbulkgrit?

Thank you so much for your inquiry. This item (the Complete Media Kit) contains the grit along with GemFoam to assist in the polishing stage and Ceramic Pellets to reduce rock breakage along with making the tumbling process more quiet. The Bulk Grit does not contain the GemFoam or pellets, but does contain the grit.

How much of each medium is included in this accessories set?

The jars shown hold approximately 2/3 of a cup, so plan on buying bulk bags in the near future.

My lid cracked and i need a new one. Are there replacement parts avaliable to buy?

Not sure if you are referring to the tumbler canister lid but you will find replacement parts on Ebay under rock tumbler parts

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We remain fully operational. Our teams are working around the clock to ensure your deliveries continue safely.

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National Geographic Rock Tumbler Media – The Ultimate Rock Polishing Supplies Kit, 4 Stage Bulk Rock Tumbler Grit, 1.5 Pounds of Ceramic Pellets, GemFoam Polishing Tumbling Media

National Geographic Rock Tumbler Media – The Ultimate Rock Polishing Supplies Kit, 4 Stage Bulk Rock Tumbler Grit, 1.5 Pounds of Ceramic Pellets, GemFoam Polishing Tumbling Media

Product ID: 385689541

✨Patented GemFoam for unmatched rock shine

🧱1.5 lbs ceramic media reduces noise & breakage

⚙️4-stage silicon carbide grit for precision polishing

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44251 som

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Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

✨ Transform Rough Rocks into Polished Perfection – Shine Like a Pro! ⚙️

CERAMIC MEDIA MAGIC - Quiet your tumbler and protect your gems with 1.5 lbs of noise-dampening, breakage-reducing ceramic pellets.
AWARD WINNING STEM FUN - Backed by National Geographic and Toy of the Year winner Blue Marble, this kit inspires creativity and scientific curiosity.
UNIVERSAL COMPATIBILITY - Works seamlessly with any rock tumbler—upgrade your setup without limits.
GEM FOAM BRILLIANCE BOOST - Add the patented GemFoam for a dazzling, museum-quality polish that turns heads.
PRECISION 4 STAGE POLISHING - From rough to radiant—silicon carbide grit sculpts and smooths every stone.

The National Geographic Rock Tumbler Media Kit is a comprehensive 4-stage silicon carbide grit polishing system enhanced with 1.5 pounds of ceramic media to reduce noise and rock breakage. Featuring the patented GemFoam polishing media, it delivers an unparalleled shine to your stones. Compatible with all rock tumblers and designed for ages 8+, this award-winning STEM kit combines precision, durability, and educational value to elevate your rock tumbling experience.

Specifications

ASIN	B08B7GRBK6
Age Range Description	8 years and up
Best Sellers Rank	588,342 in Toys & Games ( See Top 100 in Toys & Games ) 329 in Polishing & Buffing 21,113 in Learning & Education Toys
Brand Name	Blue Marble
Colour	Multi-color
Customer Reviews	4.7 4.7 out of 5 stars (2,014)
Educational Objective	STEM
Global Trade Identification Number	00816448027512
Included Components	1.5 Pounds of Ceramic Media, 10 mL Scoop, 30 g GemFoam, 4 Stages of Silicon Carbide Polishing Grit Compound
Is Assembly Required	No
Item Dimensions	19 x 13.5 x 13.9 centimetres
Item Type Name	Ultimate Rock Polishing Supplies Kit
Manufacturer	National Geographic
Manufacturer Part Number	NGFOMCERGRIT
Material Type	Resin, Foam
Maximum Age Recommendation	1188.0
Minimum Age Recommendation	96.0
Model Number	NGFOMCERGRIT
Operation Mode	Manual
Power Source	Unpowered
Size	Medium, Small
Supported Battery Types	No batteries required
Theme	Fantasy
UPC	816448027512
Unit Count	1.0 count

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