Two-color PU Grindstone Double-tone Grindstone $ 4.55 Product information: Material: PU, glass foam, pumice stone Grinding stone shape: square Specification: can be customized Item No.: 2012 Color: blue and white, gray and white Features: The sponge stone foot treatment is designed with PU material, which is environmentally friendly and very suitable for leather. The rough surface of the stone is designed to rub the hard skin on your feet, making your feet smooth and comfortable. Thys products are small in size, easy to store and carry around. At the same time, sponge stone can massage your feet and keep healthy. There are 2 gems in the package, which can be used for a long time and is extremely efficient. Package: Footstone x1