The Surf Grass Mat is 29 oz. and 20 x 25 inches of high quality synthetic turf. The mat’ssupportive and soft bristles of turf work to dust off any dirt, sand, or particles that may have accumulated on your feetand wetsuit while changing. Use the Surf Grass Mat before you get into your car or walk into your house for an instant clean feeling. The mat is extremely durable and easy to clean. Storing it is equally as simple- justroll it up and secure it by the velcro strap, or lay itflat in your trunk for your wetsuit todry onwhile driving to your next destination. Ditch your lid tops, towelsand tarp and get yourself a Surf Grass Mat – guaranteed to provide comfort while garnering looks of awe and curiosity.