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Breaking load (lb) - 2500 lb
Rope chain management by the spring loaded arm
• Able crew can simply climb up the integral ladder rungs
Designed for strength and durability
Harken Aluminum Loop Air Block - 57mm Manual Pumps Breaking load (lb) - 2500Harken 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
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