Description Antal 70mm OPF Double Block OPF series, double block, sheave Ø70, SWL 2200 kg Technical Description Features Metric American Ø Sheave (D) 2.76 in 70 mm Weight 0.84 lb 380 g Ø max line 0.47 in 12 mm SWL 4850 lb 2200 kg Side bearing - Delrin balls Radial bearing - Composite Fibre Material - Aluminum Sheave material - Resin Shackle Mod. - 008HR