Lewmar 50mm Triple Synchro Block Karver KBO Lashing Blocks Abrasion resistant seat and knees

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Lewmar 50mm Triple Synchro Block Karver KBO Lashing Blocks Abrasion resistant seat and kneesProduct Description Lewmar 50mm Triple 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