High quality powder coated .040 thickness aluminum to prevent rusting. Digitally printed vinyl for numerous design options. Four color process, eco-friendly, weather, fade and abrasion resistant UV ink. Suitable for indoor or outdoor use with an average life expectancy is 10+ years. This sign is only offered in a 4" x 4" (Rectangle) size with a White Background. Two options are available: Decal and Plastic Sign (with a Suction Cup).