Specifications: Material: Carbon Steel; Holding Force: Approx. 132.3 lbs (60 kg); Overall Height: 368 mm / 14.5 inches; Upper Arm Length: Approx. 78 mm / 3.1 inches (135 mm) / 5.3 inches (5.3 mm); Middle Arm Length: Approx. 4.3 inches (110 mm) / 4.70 oz (4 g). 8.3oz