Description Antal 60mm OPF Single Web Block w/ Becket Technical Description Features Metric American Ø Sheave (D) 2.36 in 60 mm Weight 0.26 lb 120 g Ø max line 0.47 in 12 mm SWL 1764 lb 800 kg Side bearing - Delrin balls Radial bearing - Composite Fibre Material - Aluminum Sheave material - Resin