4pcs Anti Slip Coner Rubber Mat Trangle Non Slip Carpet Skid Grippers Rug Material: rubber Size: about 15.5x7.8x0.3cm/6"x3.1"x0.1" This anti slip mat can fixed the floor carpet and avoid it moving which can protect people from slipping. It is suitable to work on any smooth surfaces, such as hardwood, tile, metal, glass and ect. Package Included: 4 PCS x Non slip mat