Use indoors or outdoors - each bumper sticker is made with thick vinyl material that has been laminated for top-tier durability against water, sunlight, and scratches. 11.5x3 in 7.5x3.75 in Material: premium water-resistant vinyl Waterproof sticky adhesive Suitable for indoor and outdoor use Easy peel backing Matte finish Follow our Instagram! https://www.instagram.com/mysticandcryptic/