Wooden Mast Version and Carbon Mast Version. Wood mast version is cast bronze then machined smooth and fitted to mast. There is ¬†locking bolt and a 3/4″ hinging bolt. We suggest adding side stays for both styles of installation, it will help with the general wear and tear of the working motion that can occur when you are pounding to windward in rough conditions. Price is subject to change because of the cost of carbon and bronze so please call for a quote. 508-255-0994.