Product description Feature: ROTATING LOCKING HANDLE: Easy and fast operation, free replacement of nail drill bit. Conform to eronomic design, easy and comfortable to hold. How to Use: 1. Drive the grinding head for manicure through the high speed operation of the machine, and only need to insert one of the heads into the machine when using it. 2. When trimming, slowly move the nails close to the high‑speed rotating grinding wheel, and grind out the shape you want. You don't have to worry about the fragments of the nails flying around, and you don't have to worry about the irregular nails, polished and shaped nails are more rounded and free of burrs than those trimmed with clippers. Specification: Item Type: Nail Drill Machine Battery Type: Lithium Ion Battery (Built In) Battery Capacity: 2500mAh Adjustable Speed: 0-30000 Rpm Product Size: Approx. 16 x 4 x 2.5cm / 6.3 x 1.6 x 1in Package List: 1 x Host 1 x Nail Drill Pen 1 x Nail Drill Bit 1 x Nail Drill Bit Storage Box 1 x USB Charging Cable 1 x Manual Note: Please allow slight error due to manual measurement. Thanks for your understanding. Ingredients default