Lewmar 50mm Synchro Block - Single [29925001BK] Marine Safety | Waterproof Bags & Cases B - 160mm (5-5/16")

B - 160mm (5-5/16")

Relevant Standards: ISO 8846 MARINE and USCG Regulations for Ignition

Made in China

Large knurled wheels are released with ease

Acrylic backing grips surface

Lewmar 50mm Synchro Block - Single [29925001BK] Marine Safety | Waterproof Bags & Cases B - 160mm (5-5/16")50mm 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