JCS Subsalve USA Commercial Lift Bag with Dump Valve, 200 LB Capacity Portable: Easy for a single diver to use. Fabric: High strength, heavy-duty, urethane-coated nylon Lift Straps: 6000 LB rated strength resintreated nylon Ease of Use: Proprietary Plunger Dump Valve. Air control with a push-button at the top of the bag and a lanyard at the bottom. Vent air from above, beside or below the Lifting bag to achieve desired ascent rate. Made in USA