Description Antal 120mm Single Snap Loop Block Looper series, single block, sheave Ø120, SWL 6000 kg, with snap-loop Technical Description Features Metric American Ø sheave (D) 4.72 in 120 mm Side bearing - Delrin balls Radial bearing - Composite Fibre Weight 1.96 lb 890 g Ø max line 0.71 in 18 mm SWL 13227.7 lb 6000 kg Material - Aluminum Sheave material - Aluminum