Clear and durable. Guaranteed not to crack, chip, break or shatter under normal use and correct applications. Less odor, greater UV resistance and higher material density than other PVC chair mats. With gripper back to keep mat in place. Mat Type: Chair Mat Application: Carpet Materials: PVC.MPVV4553LSP. V4553LSP. Mammoth Mammoth PVC Chair Mat for Standard Pile Carpet.