Airhead AHGF-2 G-Force 2 Person Towable Tube Defy centrifugal force with G-Force’s topside stabilizer fins. The 4 deluxe nylon-wrapped handles with neoprene knuckle guards provide a sure and comfortable grip. G-Force has a tough heavy gauge virgin PVC bladder, fully covered with a durable double-stitched nylon cover. G-Force is 64? x 60? (deflated) and is equipped with a heavy-duty Kwik-Connect for easy and secure hook-ups. A Speed Safety Valve provides the ultimate in inflation and deflation convenience.