Harken 75mm Black Magic Block

Black Magic Air blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free-running, powerful performers are used for sail controls that see lots of action: mainsheet, runner, halyard, and spinnaker systems. A center cage keeps Torlon® roller bearings separated and parallel to reduce friction. Shackle blocks lock in two directions or swivel to keep line from twisting. Sheave Ø (mm)75 mm Sheave Ø (in)2 15/16 in Maximum line Ø (mm)14 mm Maximum line Ø (in)9/16 in Maximum working load (kg)2268 kg Maximum working load (lb)5000 lb