DEFCM21442FPC - Clear Polycarbonate All Day Use Chair Mat for Hard Floor Sold as 1 EA. Extremely durable, resiilient protective vinyl chairmat prevents wear and tear and extends carpet life. Heavy weight chairmat for anytime use on all pile carpets and hard floors. Highly rigid surface is perfect for Big & Tall users and heavy executive chairs. Exceptional clarity highlights the beauty of your fine flooring. Easy-glide, hard rolling surface prevents dishing and provides effortless chair movement.