Jumbo Dog? More like Monster Dog. With the Airhead Jumbo Dog you'll have the time of your life and you can bring up to four friends along for the ride. The Jumbo Dog has deluxe nylon-wrapped handles. The neoprene knuckle guards and seat pads have been added to provide you with comfort and to help you stay on top of this bad boy. It is a whopping 12.5 feet long and 44 inches wide. Rope hook ups are super easy with the heavy-duty Kwik-Connect. The Jumbo Dog is equipped with an Airhead Boston valve for the ultimate in inflating and deflating convenience.