Grey Pneumatic 3784D Pinion Lock Nut

Thumler's Tumbler A-R1 Rotary Rock Tumbler w 3LB Barrel

Thumler's Tumbler A-R2 Rotary Rock Tumbler with Two Barrels

Leegol Electric Double Drum 6LB Rock Tumbler

National Geographic Professional Rock Tumbler Kit – Extra Large 2 Lb. Barrel with 3-Speed Motor & 9-Day Timer – Geology DIY Kits for Adults, Rock Collection Hobby, Great Educational STEM Science Kit

Lefree store Rock Tumbler Kit for Adults Kids, Professional Rock Polisher with 3LB Leak Proof Rubber Barrel, Includes 1 LB Rough Rocks,4 Rock Tumbler Grits etc,STEM Christmas for Kids

Leegol Electric Rock Tumbler 6LB Machine

Blue Marble National Geographic Hobby Rock Tumbler Kit - Rock Polisher for Kids & Adults, Noise-Reduced Barrel, Grit, 2.5 Pounds Raw Gemstone & Jasper Mix, Great STEM Hobby Kit

Tumble-Bee Rock Tumbler - Large Tumbler for Adults & Kids - Rotary Machine for Stone, Rock, Metal and Sea Glass - Polishing Machine for Professionals & Hobbyists - Model TB-14, 1X4LB Barrel