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Ships within 48 hours · Estimated delivery Aug 18 - Aug 23
Vessel Length: 42-55 ft (13-17m)
Rope chain management by the spring loaded arm
Includes fasteners and mounting pad
Breaking load (lb) - 2500 lb
Harken Aluminum Loop Air Block - 57mm Manual Pumps Vessel Length: 42-55 ft (13-17m)Harken Aluminum Loop Air Block 57mm 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. The sheave center carries primary load, allowing a smaller, lighter weight block. The soft
