The Seachoice Sea Serpent Open Top Tube is a towable that promises to deliver countless hours of great fun on the water. Designed for one rider (up to 170 pounds), it attaches securely to a tow rope (sold separately) with its reinforced towing system, and provides the rider with a comfortable platform and multiple reliable handles. Durable heavy-duty partial nylon cover and heavy-gauge PVC (polyvinyl chloride) bladder. Sure-grip double webbing foam handles with knuckle guards and flat foam handles. Speed valve for fast inflation and deflation and zippered valve cover. Arrow-shape design for enhanced stability and greater control. Tube measuring 50 In. x 48 In. has convenient drain vent. Vibrant graphics and bright colors.