Compact size, perfectly fits in your hands, easy to pocket or carry it with you anytime or anywhere. It is more effective and cut your time in half for your precision work, this electric nail file is powerful enough for grinding, , cutting, polishing, and removing acrylic, nail polish, natural nails, toenails, etc. Features - Color: White - Material: ABS - Size: 15.60X2.15X2.00cm/6.13X0.84X0.79inch. - Charging method USB port/DC 5V - Working voltage: 3.7V - Rated power: 0.5W - Rotation speed: 15000, - Adapt to the grinding head: 2.35 mm - Battery capacity: 500mAh - Approximate working hours: 90Min - This acrylic nail drill machine is super easy and light to figure out and hold, it is friendly use for beginners. - This is a must have in your drawer for both home, salon and use as well as cosmetology. - Wide uses, suit to reshape, polish, grind, sharpen, carve and neaten acrylic nails, easily meet your different needs. - It is a manicure pedicure machine with strong motor, low noise and steady vibration when using. - This nail drill pen is easy to change drill bits. Designed for nail polishing, removing, engraving, grinding and more. Package list: 1 x host 1 x USB cable 5 x grinding head