15 Pieces of a Closed End Crimp Connectors for 22 to 16 gauge solid or stranded wire. Easily connects two or more wires together. Simply insert the stripped ends of the wires into the open end of the connector and crimp it with any standard wire crimping tool to create a pigtail connection. See through nylon insulated sleeve and a tin plated copper ferule. Rated for up to 300 volts.