![Lewmar 50mm Synchro Block - Single [29925001BK] Black Friday The Gland makes the RJ45](https://cdn.shopify.com/s/files/1/1060/5390/files/94306XL.jpg?v=1690525342)
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The Gland makes the RJ45 Female socket watertight
Compact roof prism design
No other product provides this much protection for your boat and water gear
3 Different Ergonomic Gripping Styles
Lewmar 50mm Synchro Block - Single [29925001BK] Black Friday The Gland makes the RJ4550mm Synchro Block Single Lewmar's Synchro Blocks are engineered for speed, efficiency, and superior handling. Using a combination of scientifically optimized block geometry, a Free Spin bearing, and a 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 transfer of power from
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