These bumper stickers are a great way to get your message to the public! All vinyl stocks have permanent adhesive & are repositionable during initial application. Static Cling stickers are clear or white static vinyl labels that cling to glass and most smooth surfaces by static electricity! Upon request we will block out white behind printed areas on clear vinyl, stock to enhance readability at no extra charge. Static cling window stickers have no adhesive! Please specify face or back adhesive.