Harken 57mm Loop Block Discontinued oral and nasal airway kits

oral and nasal airway kits and enough supplies for a month-long expedition for a large group

Standard 51mm (2") hole size

High-resolution satellite imagery of ports

The i40 series is simple to operate thanks to the use of just three control buttons

Harken 57mm Loop Block Discontinued oral and nasal airway kitsBlack 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