Lewmar Block Synchro single 50mm 420300 Rashies Extreme Waterproof Capability-Featuring Ronstan’s improved

Extreme Waterproof Capability-Featuring Ronstan’s improved and highly waterproof R-Tech10 fabric

SMOOTH RACE CUTFor maximum freedom of movement

UPF 50+ PROTECTIONAgainst the sun's harmful rays

The Ideal Start for an Excellent Gelcoat Finish For a truly professional gelcoat finish

Lewmar Block Synchro single 50mm 420300 Rashies Extreme Waterproof Capability-Featuring Ronstan’s improvedDesigned and engineered for speed, efficiency and superior handling, the Synchro range of blocks combine a free spin bearing with a self aligning head to reduce friction and increase efficiency. Each component is designed to perfectly synchronise with the movement of the rope to provide smooth and efficient transfer of power with reduced rope wear. A lockable head allows for in line or 90 positioning while the integrated 30 floating movement provides