For use with medium pile carpets up to 3/4" thick including the padding. Exclusive AnchorBar® cleat system distributes weight evenly to provide years of No Crack® performance. Protects against wear and tear from chair casters. Engineered for optimum clarity high performance and a smooth effortless roll. Protects against wear and tear from chair casters. Mat Type: Chair Mat Application: Carpet Material(s): Vinyl Style: L-Workstation.Unit of Measure : Each