Description Antal 60mm OPF Halyard Block Vertical Fix Technical Description Features Metric American Length (L) 4.09 in 104 mm Width (W) 0.98 in 25 mm Height (H) 3.15 in 80 mm Ø Sheave (D) 2.36 in 60 mm Weight 0.31 lb 140 g Ø max line 0.47 in 12 mm A 1.02 in 26 mm SWL 1764 lb 800 kg Side bearing - Delrin balls Material - Aluminum Sheave material - Resin Fixing screws 0.08 × 0.24 in 2 × Ø6 mm