These United States Navy Seabees Decals are made for Outside Application. They are made of Mylar; they are weather and UV resistant. Our Decals are from the same company that supplies US military exchanges throughout the world. These Decals make it clear that you or someone you know is proud to be associated with the Seabees. These Decals measure approximately 4 3/8 x 4 1/2 inches. Your satisfaction is guaranteed, period. Usually ships within 3 - 5 business days.