3M Scotchlok Butt Connector is color-coded for quick and easy identification of the wire size required. The connector has a nylon-insulated, seamless barrel and provides electrical connection to a pre-stripped end of a stranded wire. It has chamfered barrel ends that enable fast, simple wire insertion and allows for correct positioning with built-in wire stop. UL Listed, CSA Certified and RoHS 2011/65/EU Compliant.