The fitted suction cup ensures they stick to any window or smooth surface. Supplied 100% ready to display they are reusable, movable and certain to stay firmly in place. My signs hang safely on the inside of your vehicle so they can't be stolen like a vinyl or a magnetic exterior sign that can simply be peeled off by thieves, blown away by wind or damaged by the elements. They do not damage paintwork or leave marks or fades like clings or stickers that stick directly on to your paintwork. My signs can easily be removed, repositioned or transferred to another place Suitable for homes , offices and all makes and models of vehicles including cars, vans, trucks and caravans and we manufacture proudly in the UK using the highest quality materials.