Game of Thrones - Winter is Coming Round Mousepad, Mousepad Gift This 8" diameter round mousepad is made of a durable heat-resistant polyester fabric top, will keep your mouse rolling in style. Backed with a neoprene rubber non-slip backing, keeps the mousepad from sliding. The mousepad is 1/8" thick. It will not discolor or fade, machine washable. The mousepad can also be used as a placemat.