The PrimaTronics 12-10-Gauge Heat Shrink Butt Connector is designed to provide a secure and reliable connection between two wires. The heat shrink material provides a tight seal that completely seals out exposed wires and protects them against moisture and corrosion. The connectors are made from high-quality materials, meet or exceed OEM specifications and comply with RoHS standards. FleetPride is your First Click in Heavy Duty®.