UNIVERSAL OFFICE PRODUCTS-CHAIRMAT,46X60,W/NO LIP. Cleated Chair Mat for Low and Medium Pile Carpet, 46w x 60l, Clear. This clear vinyl chair mat allows the colors of your carpet to shine through. But looks aside, this mat offers a smooth, sharp-looking riding surface--perfect for any home or office. The cleated backing prevents skidding. Made for carpets up to 5/8' thick, including padding. Mat Type: Chair Mat; Application: Carpet; Material(s): Vinyl; Style: Utility.