All Custom Aluminum License Plates at designasign.com are .040 Aluminum with your custom vinyl lettering. Designasign.coms Custom AluminumLicense Plates are Rust resistant and is able to handle outside weather conditions. Our Custom Aluminum License Plates at designasign.com can also handle -40 to 176 F temperatures. Please know that the Custom License Aluminum Plates are for vanity only. These are not to be used inconjuction witha state or national registration. Your new Custom Aluminum License Plates with Vinyl Lettering are great for advertising a business, hobby, relationship, faith or just anything you are passionate about.