For use with low pile or commercial carpets up to 1/4" thick including the padding. High quality task chair mat ideal for home and light office applications. Patented AnchorBar cleats hold firmly in place. Straight edge. Protects against wear and tear from chair casters. Engineered for optimum clarity high performance and a smooth effortless roll. For use with low pile or commercial carpets up to 1/4" thick including the padding. High quality task chair mat ideal for home and light office applications. Patented AnchorBar cleats hold firmly in place. Straight edge. Protects against wear and tear from chair casters. Engineered for optimum clarity high performance and a smooth effortless roll.