Deflecto DuraMat Clear Chair Mat, Low Pile Carpet Use, Rectangle, Beveled Edge, 46 x 60 Inches (CM13443FCOM) Protective clear vinyl chairmat prevents wear and tear on your chair and extends carpet life Ideal for moderate daily use, up to 6 hours per day, over low pile carpeting up to 3/8" thick Studded bottom surface provides superior, non-skidding gripping power over carpet Smooth beveled edge enables easy carpet to chair mat transition at home, office or any commercial environment Free and Clear non-phthalate, non-cadmium material formula promotes a healthy work environment, while offering exceptional clarity and durability