Although primarily designed for indoor use, this self-adhesive sticker may also be used outdoors. Please note that prolonged exposure to direct sunlight may cause fading over time. Turn any image into a custom sticker—simply send us your design. Each sticker is made from high-quality vinyl that is waterproof and durable. Perfect for use on tumblers, windows, man caves, toolboxes, phones, laptops, and more. The strong self-adhesive backing allows the sticker to be applied easily to a variety of smooth surfaces. All items are shipped via USPS envelope.