VEVOR Direct Drive 1.36 Rock Tumbler Kit, 4-Speed/9-Day Timer,Professional Rock Polisher with Rough Gemstones/Grits/Jewelry Fastenings,Stone Polishing Kit for Family Fun Time,STEM Gift for Adults Kids

VEVOR Direct Drive 1.36 Rock Tumbler Kit, 4-Speed/9-Day Timer,Professional Rock Polisher with Rough Gemstones/Grits/Jewelry Fastenings,Stone Polishing Kit for Family Fun Time,STEM Gift for Adults KidsPatented Low Noise GrindingSmart PolishingEasy to Use10 Rare GemstonesConsiderate Design4-Speed Gears 9-Day TimerTumbler Base Material: ABS,Speed: 1-4 Gear,Gross Weight: 13 lb / 5.89 kg,Timer: 1-9 Day,Barrel Capacity: 3 lb / 1.36 kg Max,Voltage: 12VDC,Item Model Number: KD-C3023,Rated Power: 16W,Net Weight: 11.2 lb / 5.08 kg,Product Size: 12.4 x 7.7 x 7.7 in / 31.5 x 19.5 x 19.5 cm,Barrel Size: Φ6 x 6.4 in / 15 x 16.2 cm