Description Antal 80mm OPF Single Swivel Block Technical Description Features Metric American Ø Sheave (D) 3.15 in 80 mm Weight 0.75 lb 340 g Ø max line 0.55 in 14 mm SWL 4850 lb 2200 kg Side bearing - Delrin balls Radial bearing - Composite Fibre Material - Aluminum Sheave material - Resin Shackle Mod. - 008HR