A unique sprocket system on the Wow Aqua Treadmill turns this inflatable water tube into a human powered vehicle that enables you to move across the water at speeds up to 10 mph. You can also steer by putting all your weight onto one side or the other. The Aqua Treadmill easily functions as a floating island with shade when you're not riding behind a boat. High profile with bright colors makes the Aqua Treadmill highly visible on your favorite body of water. Features 8 drainage ports, grommet with 10' rope for tying off when lounging, and cushioned cockpit. 80" x 80" x 65".