We double dog dare you to climb on hang on and have some serious fun! DOUBLE DOG 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. The Boston valve is easily accessible on these boating tubes for quick inflating and deflating. Size: 79″ long x 49″ wide (deflated).