Clear chair mat made from renewable plant sources. Contains 26% USDA certified biobased content by weight. Phthalate-free and cadmium-free. Protects loop/berber style carpet up to 3/8" thick including padding. Exclusive AnchorBar™ cleats hold firmly in place, yet are gentle on carpet and fingers. Ideal for moderate use in home and office applications. Straight edge. Mat Type: Chair Mat; Application: Low Pile Carpets up to 0.38" thick (including padding); Width: 45"; Length: 53".