Our Pro-style double side adjustable outhaul system gives you the ability to change the shape of the sail on the fly... the key to unlocking the full wind range and performance potential of your sails. The system is simple to attach to the boom (no tools required), and gives you a powerful 4:1 purchase on either side without any additional pulleys on the sail clew grommet. Heavy-duty ribbed webbing gives textured feel for perfect micro adjustment. The spring-loaded cam-lock buckle allows for precise, controlled release. Each kit comes with two closed loops of Dyneema line containing the adjustment straps and purchase pulley, plus 300 cm of Dyneema for the outhaul.