First released by O'Brien over 25 years ago, the Le Tube towable tube skips like smooth stones across water. The 56" diameter tube is made from 24-gauge PVC and partially covered by a 420-denier nylon cover. The O'Brien Le Tube Towable features 4 handles with EVA knuckle guards, and quick-connect tow hook. Lightning valve inflates/deflates 57% faster than standard Boston valve. Overton's recommends purchasing one of our Inflator/Deflator pumps (items #109694, #109532, or #109572) that come with an adapter sized to fit the new Lightning valve. 170-lb. weight capacity. 56" diameter. The Lightning Valve is similar to the Boston Valve except that it is attached to the towable, so there are no parts to keep up with or lose. The wider opening inflates and deflates 57% faster than the Boston Valve. An interior flap prevents air from escaping, even if the cap is not in place. Inside diameter of the valve measures 30mm. Quick-connect tow hook Lightning valve for faster inflation. Pump adpater included | Le Tube 1-Person Towable Tube