The harsh winter weather, combined with walking or running, or even just static standing, can all cause a number of foot conditions such as painful callous and corn (hard skin) build-up, so it's no wonder we need to take more care of our feet! Most people take their feet for granted, until pain or problems such as blisters or calluses develop. But it's important to be kind to your feet and of them-before problems arise-and to treat existing problems before they limit your ability to function. Use the correct tool to do regular maintenance is important to keep the corn and callus minimal and provision of appropriate pressure support prevents the overexposure to aggravating pressure forces. Colour:blue Material:PS material +430 steel sheet + sandpaper Size:17 x 3.2 x 2cm Package Contents: 4 x foot file Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.