The Grote Theft-Resistant Mounting Flange is the perfect solution for your vehicle lighting needs. This flange is made of polycarbonate with high impact and UV-resistant properties. The round shape theft-resistant mounting flange is covered with a security ring to ensure your lighting is safe and secure. Installation is easy and the flange is designed to fit round LED and incandescent lamps. FleetPride is your First Click in Heavy Duty®.