4 mm plate shackle to mount standard mainsheet blocks EX1318 and EX1320.
Harken 40-29mm Optimist mainsheet link block
Flexible 40mm PVC boot to mount under ratchet blocks.
This rubber stand-up from Optiparts keeps your block from hitting the deck without...
PRO RACING Optimist mainsheet system
Complete Optimist mainsheet system for pro racing Optimist.• 1 x double tapered mainsheet...
Optimist plain bearing halyard for Silver mast
Harken 29mm carbo block. Compact and extremely strong blocks.
Ultra lightweight for mainsheets and control lines.
These blocks can...
57mm black ratchet Optimist mainsheet block
Ball bearing 57mm ratchet Optimist mainsheet block.
Most economic ratchet block...
Harken model 2135 57mm ratchet block, used as Optimist mainsheet block with 2-way link.
Replacement Optimist halyard line with low friction ring spliced on.
57mm Harken Carbo ratchet mainsheet block
Harken 57mm carbo ratchet block, model 2135, used as Optimist mainsheet block and Laser...
Optimist halyard system as used on Blackgold Optimist masts.
Optimist Halyard system with Windesign low friction ring.
5 mm plate shackle to mount ratchet blocks and ball-bearing mainsheet blocks
Optimist hook-in block red Optiparts
Harken HK404 micro block
Ball bearing 16mm Harken micro block with stainless steel cheeks.
Harken 40mm carbo blocks. Compact and extremely strong blocks.