ISO Rig Tensioner.

This is a simple cascade block and rope system to attach to the end of the wire jib halyard of the ISO dinghy. The jib halyard exists the back of the mast via a slot. The jib wire large soft eye is attached to the carabiner clip. The rope and the two supplied blocks are then arranged as shown in the below layout to form a cascade system using the existing fairlead (knotted on the existing mast fairlead to form the base of the cascade), then via the fixed lower mast turning block, and then finally tensioned via the exsiting clam cleat on the side on the ISO mast.