PVC construction. Two-rider cockpit cube designed for younger riders. Provides a wild, but stable ride. Comfortable inflated floor and deluxe handles. weighs 6.64 lbs.. AIRHEAD 32 Degree Solid State products are not only long-lasting but efficient as well. One such product, theAirhead Mach 2 cockpit tube can be used by young children, teens as well as adults. This sturdy cockpit tube comes with deluxe handles that have neoprene knuckle guards. Made with heavy gauge PVC bladder and double-stitched nylon cover, it is very strong and durable. It is equipped with a Boston Valve and Kwik-Connect that helps to inflate and deflate the tube easily.