Our stickers are built to last. Crafted from 6 mil semi-rigid vinyl with a clear permanent adhesive, they’re fade-resistant and designed for up to 3 years of outdoor use. Keep them indoors away from sunlight, and they’ll stay vibrant for up to 5 years! Product size is 2.5" x 3.5", actual sticker size varies by illustration. Green outer lines are only present for illustrative purposes and do not exist on the actual product.