Stayon® Brand Car & Truck Magnets stay on your vehicle. A "dirty" little secret: magnets usually fly off vehicles when they are not taken off and cleaned underneath. High wind speeds drive particulate and sand under the leading edge of magnets. When not cleaned monthly, this sand creeps deeper and starts interrupting the magnetic bond between the vehicle and magnet. Our magnets are printed with HD full color Epson printers and overcoated with scratch and fade resistant clearcoat. We know you'll love the price, the free design, and the quality.