VEVOR Jewelry Polisher Tumbler, 11lbs/5kg Capacity Mini Rotary Tumbler Machine with 0-60 Minutes Timer, 5 Speeds Jewelry Rotary Finisher for Surface Polishing Grinding Buffing Gemstones Jewels Coins Upgraded Gear Transmission Multifunctional Panel Large Capacity Tight Lock Buckle Operation Steps Wide Application Inner Dimension of the Barrel: Φ 7 x 4.7 in / 17.8 x 12 cm,1-stage Speed: 50rpm,Outer Dimension of the Barrel: Φ 7 x 8.6 in / 18 x 22 cm,Product Size: 8.6 x 11 x 11.2 in / 22 x 28 x 28.5 cm,Rated Voltage/Frequency: 110V AC 60Hz,4-stage Speed: 105rpm,5-stage Speed: 130rpm,Barrel Capacity: 11 lbs / 5 kg Max,Model: KD-20001,2-stage Speed: 70rpm,Rated Power: 60W,Timing Range: 0-60mins,Net Weight: 11 lbs / 5 kg,3-stage Speed: 90rpm