Description Antal 140mm Single Snap Loop Block w/ Becket Technical Description Features Metric American Ø sheave (D) 5.51 in 140 mm Side bearing - Delrin balls Radial bearing - Composite Fibre Weight 2.59 lb 1.179 kg Ø max line 0.79 in 20 mm SWL 17637 lb 8000 kg Material - Aluminum Sheave material - Aluminum