Made of aluminum material：Glossy, with UV resistant clear coating to protect the frame. Anti-corrosion, anti-rust and weather resistant, it can protect the license plate well from rusting. High quality license plates are easy to install and are built for standard American vehicles, giving your ride the power it needs while maintaining state requirements.We now have additional gifts (four tire valve)The package include all installation accessories :2 x License plate frames4 x Tire valve cap8 x Plastic screw caps8 x Washers4 x Machine screws4 x Self-tapping screws4 x Spacers1 x Screwdriver