Lifting Bag Pneumatic 2 Ply Kevlar(R) with Neoprene Material Kevlar(R) Reinforcement Capacity (Tons) 3.1 Max Lift Height (In.) 5.1 Collapsed Height (In.) 1.1 Extended Height (In.) 6.2 Air Required (Cu. Ft.) 0.53 Max Pressure (PSI) 116 Burst Pressure (PSI) 464 Connector Type Multiple Options Length (In.) 9 Width (In.) 9