GITSENSE Rock Tumbler Kit

GITSENSE Professional Rock Tumbler Kit, Large 2.5Lb Barrel Rocks Tumbler Kit, Stem Science Gift for Kids and Adults, 9-Day Timer&3-Speed Motor, Include Rocks, Grits and DIY Tools

Blue Marble National Geographic Rock Tumbler Grit and Polish Refill Kit - Tumbling Grit Media, Polish Up to 20 lbs. of Rocks, Works with Any Rock Polisher, Rock Tumbler Supplies

6 LBS Large Weight 4 Step Rock Tumbler Grit Set, Tumbling Media Refill-Coarse / Medium Grit / Pre-Polished / Final Polish, Works with Any Rock Tumbler, Rock Polisher, Stone Polisher