Establish a secure connection to your tow vehicle with the Hopkins 4-Pole Round Trailer Socket. This chrome-plated connector has concealed terminals for easy assembly.• Corrosion-resistant terminals• Die-cast zinc connectors for durability• Impact and corrosion-resistant• For towing smaller utility trailers• Meets SAE standards Impact & corrosion-resistant For towing smaller utility trailers Meets SAE standards | Hopkins Manufacturing Hopkins 4-Pole Round Trailer-Side Socket