Polyester material reinforced with Aramide (Kevlar). Vulcanized with hot temperature under pressure in one operation. Non-slip surface providing maximum friction when stacking two lifting bag. Sizes: 140 x 130 mm. Thickness: 25 mm. Lifting capacity: 1 t. Maxi stroke: 75 mm. Max. air requirement: 2.7 L. Max. inflation pressure: 8 bar. Test pressure: 12 bar. Weight: 0.44 kg.