If you want to make your gooseneck adjustable fore and aft this is the way to do it. You replace the nut and bolt on the boom clamp with this quick release. Make markings on your boom so you know that perfect setting for every wind strength. Availability: Usually ships the next business day. QRBB$8.99 Due to the wide variety of the size and weight of our items we will charge the actual cost of shipping in a separate charge on all orders. Please email us for a shipping cost estimate. Shipments outside the USA may have add on fees and duties by your own government. Sailing can be green! See our recycle your old sail offer Send us email