Show your high school or colleges alma mater colors with pride wherever you go with this custom car magnet in your bookstore. These magnets measure 28 - 39.99 square inches and theyre 30 mil thick. Theyre made from non-toxic flexible material in the USA and can stand up to outdoor conditions. Care statement will be automatically printed on the product and reads: Magnetic Signs - Apply to flat metal surface, remove weekly for cleaning. Made in USA.