Solderless 1/4 inch Jacks for use with Evidence Audio Monorail cable. Creates a 'better-than-soldered' connection between Evidence Audio's revolutionary Screw In Solderless connectors and the renowned Monorail cable. A simple process you will have to do just once for a life-time air tight connection. Yet the plugs can be removed and used again at any time as part of a new or different cable.