The Master Appliance 10054 Proseal™ Butt Splice Connector Minipak Kit is the finest "crimp and heat-seal" connector on the market today. It provides a better wire contact, less voltage drop, and better current flow. The seamless butt connectors and brazed seam rings and spades prevent opening of connector barrel for a stronger crimp. The 10054 has translucent, adhesive-lined heat shrink polyolefin shrink tubing, which does not reduce in length creates better insulation and allows visual inspection after it's finished. This also features different colors to color-code work. These connectors have superior integrity of electrical systems, sealed electrical systems ensure the original integrity of wire connections and wiring harnesses and conforms to OEM standards.