Harken 57mm Aluminum Low Load Black Magic Block w/Swivel [3226] Sailing | Rope Large armholes for greater range

Large armholes for greater range of motion

Generator start can be initiated by “Status Relay” contact

Cast Bronze

The inflator is maintenance-free for 5 years from the date of manufacture

Harken 57mm Aluminum Low Load Black Magic Block w/Swivel [3226] Sailing | Rope Large armholes for greater range57mm Aluminum Low Load Black Magic Block with Swivel 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 the line from