Harken 57mm High Load Double Block
Harken 57mm High Load Double Block
SKU:HAR-3217
40 in stock
Regular price
$441.95 USD
Regular price
$502.25 USD
Sale price
$441.95 USD
Unit price
/
per
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. Shackle blocks lock in two directions or swivel to keep line from twisting.
Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.