VEVOR Jewelry Polisher Tumbler, 6.6lbs/3kg Capacity Mini Rotary Tumbler Machine with 0-60 Minutes Timer, 5 Speeds Jewelry Rotary Finisher for Surface Polishing Grinding Buffing Gemstones Jewels CoinsUpgraded Gear TransmissionMultifunctional PanelLarge CapacityTight Lock BuckleOperation StepsWide ApplicationInner Dimension of the Barrel: Φ 5.15 x 3.7 in / 13.1 x 9.6 cm,1-stage Speed: 80rpm,Outer Dimension of the Barrel: Φ 5.9 x 6.9 in / 15 x 17.5 cm,Product Size: 6.1 x 9 x 9 in / 15.5 x 23 x 23 cm,Rated Voltage / Frequency: 110V AC 60Hz,4-stage Speed: 130rpm,5-stage Speed: 150rpm,Barrel Capacity: 6.61 lbs / 3 kg Max,Model: KD-68081,2-stage Speed: 90rpm,Rated Power: 45W,Timing Range: 0-60mins,Net Weight: 8.38 lbs / 3.8 kg,3-stage Speed: 110rpm