These safe tumbling mats feature a unique 2-ply foam system, 1 3/8"-thick closed cell polyethylene foam topped with a soft 1"-thick urethane foam. This soft, no-bottoming surface allows everyone to participate in floor activities with confidence and enthusiasm. Mats fold in 2' panels for storage. Cover is constructed of durable 18-oz. vinyl, with double-reinforced nylon stitched seams. Hook and loop fastener on 2 ends allows for even more versatility in set up. Ships by truck. Size: 4' x 8" x 2-1/4" thick.