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
Set includes:
1 rope
1 double block
1 single block
1 carabiner
1 cleat with clamp
2 rivets
Attention: The clamp on the mast, must be replaced.