This studded protective vinyl chair mat is designed for medium pile carpeting. Made from virgin vinyl compounds that produce a transparent color, allowing the beauty of your carpeting to show through. Beveled edge design for easier manueverability. The unique design of the studs produces a strong grip without piercing or damaging the carpet backing. Mat Type: Chair Mat Application: Carpet Materials: Vinyl.DEFCM15233. CM15233. Deflect-o Deflect-o RollaMat Studded Beveled Mat for Medium Pile Carpet.