Replacement ring used to fasten the rudder pin to the rudder bracket. Use for clevis pins to connect rudder cables as well. Common on Perception, Aquaterra, Dagger Wilderness Systems and many other brand kayaks. Pin is 5/8 of an inch in diameter, made of heavy-duty stainless steel wire. Sold as a single ring. (same as Confluence part number 9820065.) Also available in a ten pack.