These Hanks attach on the forestay wire and are installed to the sail by inserting a screw into two plastic "ears" that fit over and behind the luff reinforcement. These hanks are used primarily on day sailing boats under 20 feet.
For use with forestay wire up to 3/16 inch in diameter. Hanks are simple and inexpensive, but they do not have the strength nor do they provide the surety required for larger boats. Thus, they are used primarily on day sailing boats under 20 feet.