This carbo ratchet block from Harken enables you to hand-hold loaded lines and offers balance between holding power and controlled easing. The Ratchet block features nylon-resin sideplates that are densely packed with long-glass fibers, resulting in a compact block with a high strength-to-weight ratio. 

The machined aluminium sheave has been hard lube-anodized for extra strength and corrosion resistance. Elsewhere, ball bearings, sheave and sideplates are UV-stabilized with carbon black for maximum protection. Eight facets hold line securely.

The 40mm sailing block is ideal for jib sheets and spinnakers where size and weight are critical.

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