The lifespan of any of our products is as short or long as the products' caregiver allows. If someone designs a customized license plate and places it on their bedroom wall as decoration, it will last a whole lot longer than if someone actually put it on their car. The average lifespan of our decals is up to 5 years based on elemental exposure, and we have had many last even longer. You can expect at least 3 years for outdoor use before shrinkage or fading starts to occur.