Lewmar 50mm Synchro Block - Single [29925001BK] Marine Safety | Personal Flotation Devices 6-Pin Female to 8-Pin Male

6-Pin Female to 8-Pin Male Adapter

Replacement Anvils (563311) sold separately

Ever since its inception in 1958

Made of rust-resistant anodized aluminum

Lewmar 50mm Synchro Block - Single [29925001BK] Marine Safety | Personal Flotation Devices 6-Pin Female to 8-Pin Male50mm 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