SumacLife Scuff and Slip Resistant Carpet Chair Mat, 48 x 36 Inches (FURCHM001) Protect your carpet and roll smoothly with this durable chair mat Commercial Grade carpet chair mat with lip and studded gripper Clear vinyl chair mat with scuffs and slip resistant textured top Protruding lip protects the carpet when the chair is rolled on it Small studded anchors on the back properly grip carpet without damage