Lewmar 50MM Synchro Block, Single Black, 1/4" - 3/8" Line alt-73-2351 Simply spray on your favorite

Simply spray on your favorite cleaner and hit it with the Vortex

Non-corrosive-unaffected by chemicals

wait a few minutes and rinse

1" - 14 male thread

Hook is made of glass reinforced nylon

Lewmar 50MM Synchro Block, Single Black, 1/4" - 3/8" Line alt-73-2351 Simply spray on your favoriteSynchro block are engineered for speed, efficiency and superior handling. High density, free spin plain bearing and self aligning head reduce friction and increase efficiency. Easy to use, patented shackle post lock. Stainless steel straps and glass fibre reinforced cheeks. Sheave bearing pin & line size for optimum efficiency. Black.