Closed end connectors are ideal for making a simple connection of two or more wires to create a pigtail connection The pigtail connector is a closed end, crimp on wire connector used to secure electrical connection points The proper installation method is to connect the wires together first and then add a pigtail connector and crimp tight to provide a safe, secure and stable connection particularly in applications subject to vibration Designed to be used with both solid and stranded wire these closed end connectors feature a tinplated seamless copper sleeve with translucent nylon insulation Connector rated for 22 to 10 AWG applications up to 300 V.