The designs, however, are generic enough to be used with a wide range of subjects. License Plates are 5.875″ by 11.875″ and are made from specially coated aluminum panels. The dyes that form the image are infused directly into the coating, using a heat transfer process. This results in an image with vibrant colors and a glossy, durable surface. The License Plate is waterproof and can be cleaned with normal glass cleaner.