Description Antal Swiveling Halyard Block D 80 SHB (Swivelling Halyard Block) sheave Ø80 Technical Description Features American Metric Ø sheave (D) 3.15 in 80 mm SWL 4850.17 lb 2200 kg Ø line 0.55 in 14 mm A 1.57 in 40 mm B 4.72 in 120 mm C 1.54 in 39 mm Fixing screws 0.16 x 0.31 in 4 x Ø8 mm Weight 1.34 lb 610 g