The PrimaTronics Ring Terminal is the perfect choice for protecting against added vibration in rugged environments. This professional grade electrical and automotive product is made from tin-plated copper and provides superior protection against water, corrosion, salt and moisture. The vinyl insulation ensures a secure connection and provides a reliable seal. This ring terminal is ideal for a variety of applications and is sure to provide a secure and reliable connection. FleetPride is your First Click in Heavy Duty®.