Vinyl lettering. A first rate, superior, 30 mil flexible material that holds on vehicles even at high speeds. Ideal for single or simple color imprints. They are easy to remove, and conforms well to most metal surfaces. Magnets have rounded corners to prevent wind lift off. Applied with Premium outdoor vinyl lettering with 6 yr durability. 24"H x 36"W magnet is sized for limos or other extended body vehicles (image shown for example purposes reflects standard car size). Imprint area 23"H x 35"W for 24"H x 36"W magnet.