Lewmar 90mm Double Synchro Block Helly Hansen Work Wear Both opposing triggers must be

Both opposing triggers must be pressed at the same time to open the shackle

Carbon black acetal ball bearings

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

Lockable swiveling head post

Lewmar 90mm Double Synchro Block Helly Hansen Work Wear Both opposing triggers must beProduct 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