Description Antal 80mm OPF Double Block Technical Description Features Metric American Ø Sheave (D) 3.15 in 80 mm Weight 1.26 lb 570 g Ø max line 0.55 in 14 mm SWL 7716 lb 3500 kg Side bearing - Delrin balls Radial bearing - Composite Fibre Material - Aluminum Sheave material - Resin Shackle Mod. - 010HR