I received the board sticker rolled in a thin cardboard that was torn and crushed during transport. Despite several days spent flat under heavy boards, stickers remained wrinkled. I do not know if it comes from that or of the same quality of the sticker, but after only half a day on a sticker on the wall two peeling. It's been 3 times in 2 days I will return it to try to make them adhere ... Too bad because the pattern is really pretty.