Chairs & Sofas Universal 56806 Cleated Chair Mat for Low and Medium Pile Carpet, 36 x 48, Clear, Office Furniture Chairs & Sofas Clear, cleated chair mat for low to medium pile carpets., Clear, vinyl chair mat provides maximum durability to protect flooring from caster wear, spills or heavy traffic. Easy-glide rolling surface provides effortless mobility. Studded bottom surface offers superior gripping power on carpeted floors. Delivers protection for low pile carpets up to 3/8 a thick. Non-phthalate, non-cadmium formula produces an exceptionally clear mat.