☛BLUE ELF, is a fast-growing supplier on Amazon. We also have several modern logistics centers in CA and NY to offer a faster delivery.Input: DC 5V/2A Output: DC 12V/1A Rated voltage: DC/12V Rated current: 140mA No-load speed: 18000-20000 RPM Load speed: 16000-17500 RPM With this manicure set, you can get a professional manicure without leaving home! This manicure set can make your nails with good looking with just a few simple steps. It features a high-speed rotation powerful enough to trim and shape tough acrylics and toenails, yet is gentle enough to work on cuticles and weak or splitting nails. These powerful rotations combined with each precision crafted nail head lets you sculpt, shape, smooth and shine your nails quickly and easily. With it has never been easier to get a professional looking manicure at home. Don't spend one more day with chipped, cracked or embarrassing looking nails. The will give you that professional look you have always wanted without the expense. Functions Of Replacement Bit: Diamond Cone: Removes dead skin, corns and calluses Grinding Barrel: Flatten and smooth extra thick nails and rippled surfaces Small Grinding Cone: Carves into corners and hard to reach spots Soft Felt Cone: Polishes nails to a healthy shine, also use it to push back cuticles and stimulate nail bed circulation for increased nail growth Flat Emery Head: Professionally shapes nails and finishes them to a smooth gentle edge Easy to use Choose the drill bit you want and plug in. Connect the power cord with nail drill. Control the FORWARD/OFF/REVERSE button and control the speed knob to adjust the speed you want. Note: Do not apply extreme pressure when using Do not use on sores, open wounds or injured areas Keep out of reach of children Picture may appear larger on your screen.