Tumbl Trak Porta Trak Dismount Mat, 6ft x 12 ft Designed specifically for use with the Porta Trak, the 6 ft x 12 ft x 12 in Landing Mat attaches securely to the end of the Porta Trak frame with nylon webbing straps Some assembly is required by placing two pieces of 6 in foam in the red 18 oz. vinyl cover with blue nylon breather mesh on the top Designed specifically for use with the Porta Trak, the 6x12x12 Landing Mat attaches securely to the end of the Porta Trak frame with nylon webbing straps Some assembly is required by placing two pieces of 6 foam in the red 18 oz. vinyl cover with blue nylon breather mesh on the top