These are also known as Fuse Adapters - they are very easy to use and give you the ability to gain power directly from the fuse. Slide the open end onto the prong of the fuse before placing it into your fuse holder, fuse block or fuse panel. The back of the Tap lines up with the fuse. After you snap your fuse into your device, you will have a .187 Male connector (Tab) sticking out of the top of your fuse. Please see our Wire Terminals section for Push On Terminals to finish this application.