Features: 1. The magnetic tumbler is an automatic polishing process that almost eliminates the bombing of cyanide, which needs to be stripped and pulsate. 2. The tumbler is driven by a powerful rotating magnet in the finishing bowl base. 3. The whole precise polishing process is completed in 30 minutes, just putting your jewelry, steel pin, water, and special polishing compounds in the bowl, and then pressing "on". 4. The polishing process is specially designed for polished complex details, tiny cracks, and multiple settings, but uneven surfaces. 5. Magnetic tumbler can be used to deal with the integrity of some stones, such as cubic zirconia, ruby, sapphire and diamond. Specification: Condition: 100% Brand New Time control: 10-60 minutes Speed: 2000rpm Capacity: 100g Plug: AU 220V Size: Approx. 27 * 18 * 16cm/10.6 * 7.1 * 6.3in Package List: 1 * Polishing machine 1 * Roller 1 * Power Cord 1 * Instruction Book Operation Steps: 1. Pour 1/4 of the water into a bowl and mix 100g of steel pins with 100g of jewelry.Then add about 10g polishing fluid. 2. Press the middle button to open the tumbler.(tumbler has two options) Push up button, which rotates in one direction. Push the button below, which is rotated on both sides.It rotates in one direction for about 15 minutes, and then automatically rotates in the opposite direction for 15 minutes.We recommend bi-directional rotation, which is more efficient. Select the direction you want and press the middle button, then tumbler began to work. Note: The tumbler has self-protection function, when it works for a long time, it will stop to rest. when the motor cools down, it will continue to work.