specification: Item Type: Foot Callus Remover_x000D_Product Material: Nano glass_x000D_Product Size: 9.2cm x 5.5cm / 3.6 x 2.2in_x000D__x000D__x000D_How to use:_x000D_First soak your feet in warm water for 10 minutes to soften the dead skin, then dry the soles of your feet with a towel. Use the friction surface of the foot grinder to rub the dead skin, you can immediately see that the dead skin will fall off. After finishing, apply moisturizer to your feet to keep the soles of your feet moist. Features: 1Made of glass with nano technology, corrosion resistance. Sturdy design it's not easy to break off with long durability. 2There are more than 10,000 grinding points on the surface to work at the same time, just gently sliding, 3?5 minutes, easily remove the thick callus, bad heel and tough dead skin, let your feet become soft, smooth and beautiful again. 3Non?slip design ensure you can grip the foot file to remove the dry skin quickly and effective. 4The surface of the foot grinder is uniform and dense, durable, will not harm the skin, and will not feel pain due to use. 5Refined from high?quality glass, tempered glass is easy to clean, physically polished, and can be used by pregnant women and children. PackageList: 1 x Foot Callus Remover