Description Antal 100mm OPF Fiddle Block Technical Description Features Metric American Ø sheave (D) 3.94 in 100 mm Weight 2.14 lb 970 g Ø max line 0.63 in 16 mm SWL 7716.17 lb 3500 kg Shackle Mod. - 010HR Ø small sheave 2.52 in 64 mm Side bearing - Delrin balls Radial bearing - Composite Fibre Material - Aluminum Sheave material - Resin