Supports the arch of the foot. Color: Black (set of 2) Material: Nylon Size: Narrow side: approx. 14cm Wide side: approx. 17cm New, unused item. It has been opened, and there is no bag or instruction manual. The fourth photo is not the actual item, but it shows how it looks when worn. Please understand that this item is stored at home and will be shipped with simple packaging before purchasing.