Rebel 17 Rock Tumbler by Extreme Tumblers - 17lb capacity

NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Rock Polisher for Kids & Adults, Durable Noise-Reduced Barrel, Rocks, Grit & New GemFoam for a Shiny Finish, Cool Toys, Great STEM Hobby Kit

NATIONAL GEOGRAPHIC Professional Rock Tumbler Kit- Advanced Features Include Shutoff Timer and Speed Control - 907 Gram Barrel, 453 Grams of Gemstones, 4 Polishing Grits, GemFoam, Jewelry Fastenings

NATIONAL GEOGRAPHIC Rock Tumbler Kit – 1.36 kg Extra Large Capacity Barrel with 3-Speed Motor & 9-Day Timer, Includes Rocks for Tumbling and Rock Polisher Grit, Science Kit for Adults and Kids

NATIONAL GEOGRAPHIC Professional Rock Tumbling Kit - Patent-Pending Rock Polisher for Kids & Adults, Platinum Series Ultra Quiet, 2 lb. Barrel, Rocks, Grit, GemFoam Polisher, Rock Tumblers for Adults