Harken ILCA Vang Middle Unit
29/18mm Zircon Twisted Fiddle
- Twisted Fiddle design accounts for the different line velocity between the 2 sheaves.  Unit stays balanced, does not tip / twist like traditional double blocks.
- Unit geometry promotes clean rigging and minimises chafe.
- ZirconTM larger sleave with FlyTM smaller sheave for ultimate responsiveness.
- Use hollow rivet in lower sheave as the dead end when rigging 15:1.