30 mil Vehicle Magnets are larger sized Magnets designed to stick to vehicles with metal body panels(like car doors). These thicker magnets are printed on 30mil stock and are traditionally printed in full colour. You can also order custom sizes ranging from 12" x 6" to 60" x 24". Transportation trucks can also get magnets as long as 100’ in length by special order. You may also want to consider adding a QR code, your customers prospects can easily get additional information by quickly by scanning your qr code and linking to your customers website. This is all done via their mobile device and is growing in popularity.