Gymax PVC Chair Floor Mat Standard Pile CarpetOur PVC chair mat provides a studded back designed to achieve a strong grip without piercing or damaging your carpet backing, beveled edge for smoother rolling on and off your mat, and a lip to cover the carpet under your desk when your chair is pushed all the way in. Do not hesitant to buy it! Features: Smooth surface facilitates easy movement of the chairs Multipurpose Use: Chair Mat Computer Office Mat Eco friendly material PVC Rectangular with lip