Choose from available sizes. Nylon grips with knuckle guards for comfort. Made from rugged nylon and PVC components. Your choice of available passenger configurations. Kwik-Connect rope connection. Includes 1 ski tube. Heavy-gauge vinyl air bladders keep the Sportsstuff Hot Dog Ski Tube afloat for summer after summer of water play. This ski tube is covered with an 840 denier nylon material that prevents rips, snags, and punctures. Speed Safety Valves promise rapid air-ups and deflations, and the Kwik-Connect features makes hooking up the tow rope a cinch.