Features: Professional portable design, high quality, high quality service The grinder is equipped with a chuck, and the mini design makes 2 in 1 quick-switching polishing motor and multi-function host power supply in the handle of the whole grinder, ensuring the compactness and portability of the body and mobility. This nail polish can be used for polish, nails, dentures, models, jade, jewelry and more. Different grinding heads will achieve different grinding results. Using 5V high-strength magnetic motor, the speed is faster than the conventional 12V motor, the power consumption is lower than the conventional 12V motor, the calorific value is low, the speed is high, and the power consumption is low. It is compatible with any 5V1A and larger power adapter on the market. Almost any phone charger adapter will work with this sander. Simple and convenient operation: The high-quality motor runs smoothly, and the professional pen-shaped drill runs very quietly, smoothly, and without vibration. Comfortable grip. Professional quality for an extremely quiet and smooth experience. Safe and durable: The electric manicure adopts high-quality aluminum shell, which can effectively dissipate heat, increase working time and prolong service life. Product Quail: 13 x 2 cm