Description Antal 100mm OPF Double Block Technical Description Features Metric American Ø sheave (D) 3.94 in 100 mm Weight 2.84 lb 1290 g Ø max line 0.63 in 16 mm SWL 11023.10 lb 5000 kg Shackle Mod. - 012HR Side bearing - Delrin balls Radial bearing - Composite Fibre Material - Aluminum Sheave material - Resin