Car Magnets - 30mil are made of thick, long-lasting magnet sheets that strongly stick on clean, dry and flat metallic vehicle doors. Magnetic car signs are composed of a vinyl face and magnetic backing with a high magnetic pull. They strongly stick to the sides of the vehicle and won’t get detached when the vehicle is travelling at high speeds. The product is strong, highly durable, weatherproof and wind-tested. Vehicle magnets are quick to apply and can be removed before car washing or when not in use. That keeps the graphics from fading or wearing away even after long-term use. Besides, assuming proper installation and removal, car magnets don’t damage vehicle paint. We offer a variety of sizes. Shop at wholesale prices.