Heat Shrinkable Bullet & Receptacle Connectors 16 - 14 Gauge, Male 84-2431,Color-coded tubing with wire gauge imprint provides easy identification of the correct part for the job,Completely insulates and protects electrical connections,Protects against added vibration in rugged environments,Protects splices from water, corrosion, salt and moisture, provides strain relief,Seamless butt connectors and brazed-seam rings & spades prevent opening of connector barrel,UL listed,,