Harken 57mm Aluminum Low Load Black Magic Block w/Swivel [3226] Communication | Hailer Horns The benefit is that the

The benefit is that the retrieval speed can be adjusted by decreasing the tension on the retrieved line

Made of nylon reinforced composite and secures braided lines up to 5/16" (10 mm) with a working load limit of 154 lb (70 kg

Includes an integrated pin on the handle tip to bend tab washers

operating mode and error messages

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Harken 57mm Aluminum Low Load Black Magic Block w/Swivel [3226] Communication | Hailer Horns The benefit is that the57mm 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