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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✨ Transform rough stones into museum-worthy gems — polish like a pro!

ULTIMATE SHINE BOOST - Patent-pending GemFoam delivers an unprecedented glossy finish
ALL IN ONE CONVENIENCE - Includes measuring scoop, secure storage, and easy-to-follow instructions
UNIVERSAL COMPATIBILITY - Works flawlessly with any rock tumbler, maximizing your setup
PRECISION POLISHING POWER - 4-stage silicon carbide grit sculpts and polishes rocks to perfection
SILENT SMOOTH OPERATION - Ceramic media reduces noise and rock breakage for a seamless experience

The National Geographic Rock Tumbler Media Kit features a premium 4-stage silicon carbide grit system combined with 1.5 lbs of ceramic media to enhance tumbling efficiency and reduce noise. Its unique GemFoam media adds a brilliant final polish, compatible with all rock tumblers. Designed for ages 8+, this all-inclusive kit includes measuring tools and secure storage, empowering hobbyists and professionals alike to achieve dazzling, smooth gemstones with ease.

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Product Dimensions	19 x 13.49 x 14 cm; 2.52 kg
Manufacturer recommended age	8 years and up
Item model number	NGFOMCERGRIT
Educational Objective(s)	Science
Number of Game Players	1
Assembly Required	No
Batteries Required?	No
tech_spec_battery_description_toys	No batteries required
Material Type(s)	Rock
Remote Control Included?	No
Color	Black
ASIN	B08B7GRBK6

National Geographic Rock Tumbler Media - the Ultimate Rock Polishing Supplies Kit,4 Stage,0.7kg of Ceramic Pellets

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