Now you know they'll get the message. With this clever design, these removable wall stickers are doing double duty of design and function by holding notes, lists, CDs, or movie tickets in a small pocket. They're completely removable, meaning you can put it somewhere you know the recipient won't miss it. It's also handy for just adding a little modern design to your home office, child's room, or general living space. Great for the whole family.These stickers will work on just about any surface, but take care with wallpaper or some delicate surfaces. If in doubt, test in an inconspicuous place prior to applying all the stickers. Also, wait 10 to 15 days after painting before using stickers. Though the paint feels dry, it needs adequate time to cure. As with any adhesive product, these will work much better on clean surfaces free of dust and the like. Specifically, they will work well on surfaces including but not limited to walls, mirrors, your fridge, laptop covers, tile, glass, lockers, furniture, and automotive surfaces.Please note this product does not ship to Pennsylvania.