Deflecto Polycarbonate Hardfloor EconoMat Clear Chair Mat, Hard Floor Use, Rectangle, Straight Edge, 36" x 48", Clear (CM21142PCCOM) Extremely durable, resilient protective vinyl chair mat prevents wear and tear and extends carpet life Heavy weight chair mat 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