The G-Force® Series is a wild ride for thrill-seekers. Defy centrifugal force with G-Force®'s topside stabilizer fins. The four deluxe nylonwrapped handles with neoprene knuckle guards that provide a sure and comfortable grip. G-Force® has a tough heavy-gauge virgin PVC bladder that is fully covered with a durable double-stitched nylon cover. Equipped with a heavy-duty Kwik-Connect? for easy & secure rope hook-ups & a Speed safety valve for convenient inflation & deflation.