These are the same sticker designs that we have sold at countless comic con events throughout the western US. Our vinyl vehicle stickers are made from the best high-performance materials available. Unlike many suppliers, our products are rated for 7-10 years in any weather, either heat or cold, dry or damp. They will not shrink, peel, crack, fade or discolor. These are the same materials we use for professional installation of vehicle graphics on work trucks and trailers, big-rigs, police and fire vehicles, food trucks, etc. Your sticker will come with complete instructions for application, with a reference to a guide video that we have posted online. The applied sticker will last for very long time, but can be easily and cleanly removed if you so choose. The actual sizes of the designs vary, but they are approximately 4.25x6 inches. PLEASE BE ADVISED that we accept returns or refunds ONLY for obvious defects in workmanship or materials. They failure of the buyer to properly apply this sticker is not the responsibility of the seller.