HARKEN Black Magic Air Block | Premium Sailing and Sailboat Equipment
- Black Magic Air blocks are a top favorite of Big Boat performance racers and cruisers.
- Lightweight, free-running, powerful performers are used for sail controls that see lots of action: mainsheet, runner, halyard, and spinnaker systems.
- 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.