Nurse Heartbeat Car Tag Engraved Etched on Black Aluminum License Plate GIFT. Our license plates are made from aluminum and will not rust. They are painted with a high performance baked on gloss enamel finish. We use a diamond etching process, so no worries about peeling or fading. We actually engrave the design into the metal, making for a plate that will last for years. We guarantee it! ~Made from .040 aluminum, not .025, our tags are almost twice as thick as others. ~Fits any standard size 12"x 6" mount with four slots as pictured. ~Plates are made to order and usually ship within 24 hours. Makes a great gift!