Ingredients:Use with caution. The set includes: Scholl Velvet Wet waterproof for computer equipment feet USB docking station 5 blue tips of fine coarseness Gift packing as seen in the picture Main features: Wireless computer equipment for dry or wet foot care The set includes a quick and easy charging via the included USB docking station. Two working speeds - Adjust the power of the hardware to the needs of your skin With pre-connected USB charging - Complete set for immediate use out of the package Waterproof - The new electric computer equipment for foot care Scholl Velvet Smooth Wet&Dry is completely safe both in the bath and in the shower Ergonomic design - The shape and anti-slip coating ensure excellent computer equipment holding in your hand. Built-in battery - You don't need to buy and change the next batteries Specification: Two speeds available USB docking station with USB port Set with 230V mains charging with one USB port Set of five fine grit rollers Able to work both wet and dry