Lewmar 50mm Synchro Block - Single [29925001BK] Marine Safety | Personal Flotation Devices and a modular quick-change design

and a modular quick-change design for easy in-water service and upgrades

molded side pockets

Glass-lined steel tank is more durable than stainless steel

boaters can center their outboard motor equipped with hydraulic steering and keep it from wandering when trailering

Backed by nearly 40 years of trim tab

Lewmar 50mm Synchro Block - Single [29925001BK] Marine Safety | Personal Flotation Devices and a modular quick-change design50mm 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