Jib Halyard Tensioner Upgrade
Makes it easier to tension the jib halyard and stiffens the entire rig.
The 3:1 pulley requires less pulling force.
To upgrade for GRABNER boats: HAPPY CAT NEO,
HAPPY CAT EVOLUTION up to 2018
1 double block
1 single block
1 cleat with clamp
Attention: The clamp on the mast, must be replaced.