1. Good heat dissipation effect and can be used for a long time. High‑quality accessories, with good structure. 2. The polishing handle very quiet and, with slight vibration, and the chuck handle can be locked/unlocked, safer operation, high efficency. 3. Do not move the polishing head lock catch of the handpiece during operation; do not cover the vent on the handpiece during use. 4.Ergonomic handle design, comfortable to hold, easy to use, sturdy and durable. You can easily replace nail drill bit without tools. Color: Silver & White Material: plastic Specifications: DC Plug/5 PIN Package Contents: 1 x Electric Nail Drill Pen Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.