Airhead Hydro-Boost 54" Towable: * 4 neoprene knuckle guards * Deluxe nylon-covered handles provide a sure and comfortable grip * Heavy-duty virgin PVC bladder * Electronically welded seams * Speed Valve for quick inflating and deflating * Double-stitched nylon cover * Reinforced internal tow harness * Self-draining floor vent * Eye-catching graphics * 54" round