Anchormat vinyl chairmats are designed to anchor the mat to the floor, For use with commercial and rubber-backed carpets without padding, Mat Thickness: Value , 098, Clear, see-through designed mat, Traditional straight edge for those who won"t roll off and off the mat, Lifetime Warranty against cracking, chipping, breaking, or shattering under normal use, Dimensions: 45"" x 53"", SKU: ESRB037