The O'Brien Slacker tube is fully covered with 840/420-denier nylon and features a durable 30/24-gauge PVC construction. The Slacker also features 1 quick-connect tow hook, 1 Lightning valve, 3 Eco valves, and 4 handles with EVA knuckle guards. 510-lb. weight limit. 70" x 80". One-year limited warranty.
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.