I use rigid mailers when shipping out decals - you're pretty much paying for the protection of your vinyl decal. NO FLIMSY STAMPED ENVELOPES HERE!
Our decal has a 6 years outdoor guarantee! They will adhere to any clean, flat, non-porous surface. Try them out on laptops, mirrors, tumbler cups, windows, or just about anywhere you want to stick them! Decals are removable, but not reusable.