3 kg Drum Polishing Machine, Jewelry Rotary Tumbler, Tumbling Mini-Tumbler Rotary Tumbler Polishing Machine Jewelry Polisher Model Number : KT-6808 Voltage : 110V or 220V Power : 60W Machine size : 230x180x240(mm) Polishing bucket size : 140x150(mm) Time control : 10-60 minutes Speed : 1-5 adjustable speed Capacity : 3kg(Water + Steel Ball + Workpiece) drum container size: 150*105mm 1. Pour water to 2/5 barrel and put 450g (steel ball or material) with jewelry. Then add 10g polishing solution. 2. Select a specific time by turning the time control button. 3. Push the button, which is a one-way rotation. 4. Push the button, it is a two-way rotation. It rotates in one direction for about 1 minute, then it automatically rotates in the opposite direction for 1 minute. We recommend bidirectional rotation, which is more effective. Disclaimer: There is a stop section for 5s during the two-way rotation. After the stop, the barrel will automatically rotate into opposite direction. During the stop, cannot push the button to rotate in a single direction. Otherwise the machine will power off and not work. Then it needs to push the button to return to work normally, and then push the button to rotate in single/one-way direction. _x000D_ Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.