Tumbling media is a material placed in a rock tumbler to: 1) serve as a filler, 2) cushion the rocks, 3) enhance the tumbling action, 4) deliver grit to rock surfaces.
Polly Plastics Rock Tumbler Grit Kit & Ceramic Tumbling Filler Media
Tumbling Media Selection Guide - Inovatec Machinery
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Ceramic Media for Rock Tumbling Grind/Polish Filler- Cylinders(5/16 x 3/4)
1LB Rotary Tumbler Media Ceramic Powder Substrate Fillers For Rock Tumbler Machine Jewelry Tools - AliExpress
4.5 LBS Rock Tumbler Grit Media Complete Kit -Inculde 4 Steps Grits + Plastic Pellets + Ceramic Filler Media, Compatible with Any Brand Tumbler, Rock Polish Tumbling Supplies Set - Stone Polishers - Yahoo Shopping
National Geographic Rock Tumbler Ceramic Pellets 1.5 lb Ceramic Media for Rock Polisher, Use with Rock Polishing Grit, Protects Rocks, Improves
Rock Tumbler Media - Plastic Pellets and Ceramic Cylinders
Tumble-Vibe Rock Tumbler Kit | Home Science Tools
Thumler's Tumbler - Two Barrel Tumbler
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Roly Poly plastic rock tumbler beads are non-toxic, BPA-free and are easily stored in our resealable heavy-duty bag. As a rock tumbler filler, our plastic pellets offer improved tumbling action and noise reduction. They are smooth, rounded and float for easy separation from the rock once tumbling is complete.
Plastic Pellets Rock Tumbling Media (2 lbs) for Rock Tumbler Stone Tumbler Rock Polisher Filler Beads
Rock Tumbler Buying Guide