Lewmar Block Synchro 50mm
Lewmar's Synchro Blocks are engineered for speed, efficiency and superior handling. We use a combination of scientifically optimised 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.
Stainless steel strap for improved strength and longer service life
?Stiff glass fibre reinforced cheeks to prevent lines from wedging