Description Antal 120mm OPF Halyard Block Vertical Fix Technical Description Features Metric American Length (L) 8.27 in 210 mm Width (W) 1.46 in 37 mm Height (H) 5.79 in 147 mm Ø sheave (D) 4.72 in 120 mm Side bearing - Delrin balls Weight 1.1 lb 500 g Ø max line 0.71 in 18 mm A 1.42 in 36 mm SWL 11023.1 lb 5000 kg Material - Aluminum Sheave material - Aluminum Fixing screws 0.08 x 0.55 in 2 x Ø14 mm