Welcome to my store, Wish you have a great shopping experience here. We will keep updating new products, and there is definitely one for you. Item Name:Nail Grinder Material: ABS Compatible Models: STE101 Power Supply: 2200mAh/Rechargeable Batteries: Built-in 2200mAh Rechargeable Battery(Included) Input Voltage: DC8.4V-0.5A Working Current: DC74V Rotating Speed: 0-3000Rpm Size Details: Nail Grinder:13.5cm x 7.3cm x 3.5cm/5.31" x 2.87" x 1.38" (Approx.) Notes: You will find more amazing products if you visit our store. Due to differences in lighting and screen settings, the color of the project may be slightly different from the picture. Due to different manual measurements,allow for slight size differences. Package Includes: 1 x Nail Grinder 1 x Nail Grinder Head 1 x Nail Grinder Original Head 1 x Power Adapter 1 Set of Nail Grinder Machine 1 x Pendant 1 x User Manual