PACKAGE INCLUDE: It comes with 6 optional metal nail drill bits and 150 pcs sanding bands, making it easier and more convenient, easy to use for beginners and professionals. EASY TO USE: Drill bits and sanding bands allow you to get started immediately easy to use dialing speed control. This new electric nail art drill machine is perfectly used in beauty salon as well as personal use at home. LOW NOISE: It is quiet and smooth, very low vibration design for comfort grip. Low noise and vibration for smooth and long-time operation. ADJUSTABLE SPEED: Adjustable speed from 0 to max powerful 20000 RPM. Being applied efficiently for gel, acrylic, glass, natural nails or silk wrap artificial nails. MULTI-USE: This e filer is made of high quality metal and plastic. Great for carving, engraving, routing, grinding, sharpening, sanding, polishing, even carving deep into the glass, without the drill or converter overheating.