Speed Zone one person sit-down towable tube from Sportsstuff is designed for providing a stable ride while easily sliding outside the wake for an exhilarating run. This fast track hot rod features a full nylon cover that is as durable as it is sleek, cockpit seating to keep you in the saddle, high backrest, air cushioned floor for a more comfortable ride, and double webbing foam handles to keep your white knuckles from turning red. Inflated Length: 54 inches in Diameter.