Hook-in block, ball bearing as used on the Optimist Blackgold racing masts.Due to the curved saddle the block for Optimist sailing rests against the mast in a fixed position which prevents mast wear and creates a halyard system with less friction.
Optimist Harken Sprit Block (EX1351H)
Original price was: $27.20.$13.75Current price is: $13.75.
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