Adjustable Outhaul Boom Cleat
This is the cleat that will fit around your boom arm to set up an adjustable outhaul. Comes with a pair of collars that wrap around the boom arm (so it will fit different diameters of booms), shims to keep it from sliding, the metal cleat, and screw to fasten it all together. If you are racing on a Bic Techno 293, a Kona One Design, or in slalom or formula - an adjustable outhaul is absolutely what you need to stay competitive on the race course.