This Street Vision License Plate Cover will protect the metal license plate on your vehicle from all weather and road conditions. You just attach the photo shield over the plate with four screws using a Phillips head screwdriver. This diffusional license plate cover comes one per pack and is manufactured to provide visibility to the license plate when viewed from directly in front, but blurs at least two digits or letters when viewed from any other angle. This license plate cover also offers some protection against traffic tickets where cameras at red lights or toll booths are used to track traffic infractions.