Harken 25mm Fly Block - ILCA Wetsuits One screw through the middle

One screw through the middle of the sheave and the other through the countersunk hole in the head of the block

To achieve durability and comfort the back side is made with 3 mm small diamond neoprene and reinforced with an abrasion resistant Rock patch

is required

Stretch chest pocket

saltwater environments that are much more demanding than the conditions faced by most automotive engines

Harken 25mm Fly Block - ILCA Wetsuits One screw through the middleThe 25mm Harken Fly Block is designed to provide strength without mass, providing sailors with big power in a low aero package. Designed specifically for high tech line, these efficient blocks have an incredible working load for their small size. The high strength cast stainless steel boom key is uniquely shaped and angled to minimize weight, and remain in place, even under zero tension.