Universal 56806 Cleated Chair Mat for Low and Medium Pile Carpet 36 x 48 Clear 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. Clear vinyl allows the beauty of carpeting to show through, while providing a smooth riding surface Cleats on back prevent movement For carpets up to 5/8-Inch deep, including padding 0