Premium Rubber Coated Magnetic License Plate Holder (2-pack Bundle) - Keep Your Demo Tag or Temp Tag Secure on Test Drives (2-pack) THIS MAGNET WILL ONLY ATTACH TO A METAL SURFACE. MANY CAR BUMPERS AND PANELS ARE NOT METAL, BUT PLASTIC. CHECK YOUR SPECIFIC APPLICATION BEFORE PURCHASING. Extreme holding power and NO metal to scratch the car Premium rubber to protect paint and finish High quality hardware included Two (2) Pack - Save with bundle pricing