Lewmar 90mm Double Synchro Block Helly Hansen Work Wear repeatable positioning of the mast

repeatable positioning of the mast

ALL crew members to have a tether with 3 points of attachment

The SS10 is intended for static load applications only and is NOT approved for lifting applications

A PTFE perimeter strip ensures the unloaded furling line can't fall from the drum or become snagged

Lewmar 90mm Double Synchro Block Helly Hansen Work Wear repeatable positioning of the mastProduct Description Lewmar 90mm Double Synchro Block Lewmar's Synchro Blocks are engineered for speed, efficiency and superior handling. We use a combination of scientifically optimized block geometry, a free spin bearing and self aligning head to reduce friction and increase efficiency by up to 40% over budget blocks on mainsheet systems. Each component is perfectly synchronized with the movement of the rope, providing you with an easier, smoother