You?ll be the envy of the lake with Sportsstuff's Rockin' Mable! The Mable series has been one of the world?s most popular towables since its inception. We?ve raised the bar with the Rockin' Mable series. They have all of the same popular features as the Mables, but with a convex bottom surface that provides super fun rockin? action! Rockin' Mable slide effortlessly side-to-side, so the kids will have more fun, even at slow speeds. They?re 2 tubes in 1, ride them sitting down or kneeling! The big wrap around backrest, soft knee/seat pads and a magnitude of strategically placed handles keep you on the tube, no matter how wild the action! The front & rear Dual Tow Points are equipped with Sportsstuff's patented aluminum Quick Connects for easy hook-ups. This tube is built to last, with a double-stitched 840 denier nylon cover and 30 gauge vinyl bladder. Inflating and deflating is a snap with the 2 patented Speed Safety Valves.