Airhead AHRE-12 Rebel 1-Person Towable Tube Kit is equipped with a heavy gauge PVC bladder and fully covered by rugged, double-stitched nylon. Features include a triple reinforced tow harness, drain vents and boarding straps. And, this 54 inch diameter deck tube has four deluxe handles with neoprene knuckle guards. Add these features to the Boston Valve—which boasts inflating and deflating convenience—and you have one of the best towable water tubes on the market.