Chinese double happiness Static sticker. The sticker can cling on the smooth surfaces of Wall, Glass, metal, tiles etc... by static electricity.  If the sticker could not cling on firmly, you could rub the surface with hand to make more static electricity and the sticker would cling on more firmly.

There is no adhesive back on sticker and no double side tape is needed. You can easily remove, repost, reuse them again and again.

one package two stickers