Chairs & Sofas ES Robbins 124054 36x48 Lip Chair Mat, Performance Series AnchorBar for Carpet up to 1, Office Furniture > Chairs & Sofas Chair mat for intensive use., High performance chair mat for intensive use such as multi-shift or Big & Tall. Exclusive AnchorBar chair mat cleats hold firmly in place yet are gentle on carpet and fingers. Protects against wear and tear from chair casters. Engineered for high performance and a smooth effortless roll.