We double-dog dare you to climb on, hang on and have some serious fun! The Airhead Double Dog 1 to 2 rider inflatable tube is built to last. The 30-gauge PVC bladder is completely covered in double-stitched 840-denier nylon, with no exposed vinyl. It has 2 deluxe handles with neoprene knuckle guards and seat pads. Equipped with a Speed Safety valve for easy inflation and deflation.