Ergonomic shape fits palm perfectly. Expertly crafted in genuine German-made ceramic to smooth calluses & gently exfoliate dry skin. Based on Tweezermans best selling Perdo Callus Stone, this new ergonomic shape fits perfectly in the palm of your hand for exceptional comfort & maximum control. Built-in colourful storage unit with ventilated cover is pack-able & convenient. Directions for use: Use wet or dry to remove tough calluses & embedded dirt & to gently exfoliate dry skin. [I] Please note the colour of the Tweezerman Pedro Too Callus Stone may differ from the one shown. Colour is chosen at random.[/I]