If you have ever fished for pike with fly you have definitely had thoughts how to connect your fly to the wire leader easily. This is the easy and secure option. Attach one of these at the end of your wire and you can change your fly quickly without having to cut the wire all the time. This is light enough so it doesn't disturb your fly's movement and the barrel at the end prevents most of the line twist which is often caused by these bird size pike flies.