Rumble WIT-4 3 Rider Towable Enjoy a wild yet stable ride on WORLD INDUSTRIES' RUMBLE towable. This 71 x 71 inch (deflated) D-shaped deck tube is for 1, 2 or 3 riders. The inflated rails help riders stay in position when riding aggressively. The roomy deck has 6 strategically placed handles with neoprene knuckle guards. RUMBLE is equipped with a Kwik-Connect and Boston Valve for the ultimate in convenient tow rope hook-ups, inflation and deflation.