Harken 75mm Aluminum Loop Block RING TERMINAL Sideplates and sheaves Hard Lube-anodized

Sideplates and sheaves Hard Lube-anodized for maximum UV protection and a smooth surface

UV stabilized

ON-OFF Contura Switches

Watertight mounting gasket

Harken 75mm Aluminum Loop Block RING TERMINAL Sideplates and sheaves Hard Lube-anodizedBlack 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