While it is recommended for indoor use, this self-adhesive sticker can also be used outdoors. However, it is important to note that it should not be exposed to direct sunlight as it may fade over time. High-Quality Vinyl Waterproof Sticker Suitable For: Tumblers, Windows, Mancave, Toolbox, Phone, laptop and more. Indoor use is recommended. If used outdoors, do not expose to direct sunlight to avoid fading. Sticker coated with a clear-coat that acts as a protective vibrancy and protect against the elements when putting outside. Pasted on multiple Surfaces: This Self Adhesive sticker can be pasted on different surfaces. All items are shipped via USPS Envelope. If you want USPS first class package with Tracking please select it at checkout.