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Ships within 48 hours · Estimated delivery Aug 9 - Aug 14
94 kg/8 lbs
BV/MED approved
Temperature range: From 5x to 158x F (from -15x to 70x C)
Battery back-up systems
Standard 51mm (2") hole size
Harken 57mm Loop Block Discontinued 94 kg/8 lbsBlack 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 attachment Loop block has a