Our University of Connecticut peel and stick appliques can be placed safely onto any smooth, dry, and clean surface! Great on painted walls (they never leave any sticky residue) for bedrooms, dorm rooms, and offices! You can move them around at will (they are repositionable over and over) - and you can even replace them on their original liner for later use. So, use them to decorate a room during the next football party. Works on tiles, accessories, mirrors, lockers, refrigerators, laptop covers....oh...and also on cars! Yes! They do go through the car wash with no problem. This is so much more versatile than a conventional sticker.