SPORTSSTUFF 53-2263 Rockin' Mable 3 Towable Tube, 3 Rider Convex Bottom Surface slides effortlessly side-to-side Front and Rear Dual Tow Points are equipped with SPORTSSTUFF Patented Aluminum Quick Connects Double stitched 840 Denier Nylon Cover and 30 gauge Vinyl Bladder 2 Patented Speed Safety Valves 1 to 3 Rider; deflated dimensions are 80-Inch x 62-Inch