We need to warn others when there is a mimic present this is the best way to do it. I mean if you can get close enough to the nasty thing to actually see what it is. This Dungeons and Dragons themed sticker is just a lot of fun for player and Dungeon Master alike. Seriously though, these stickers are heavy vinyl and nice quality. They are not UV coated but they hold up well to other wear and tear. They are hand made in our little shop and because of that there may be some slight differences between each one.