Our product is the original revolutionary fitness product providing swimmers with a continuous and vigorous workout in any size pool. The swimming tether turns backyard pools into 'Liquid Gymnasiums' while giving the smallest of pools 'unending length'. Constructed of Bungee cords for elasticity, neoprene for comfort and two Velcro straps, it allow swimmers the freedom of movement to perform nearly any swimming stroke and kick while kept comfortably in place. It is also great for aqua-aerobics, resistance stretching, aerobics and rehabilitation