Are self-sticking numbers required for unique inscriptions? Using the self-adhesive black numbers on transparent film, labeling is quick and easy. They hold steadily, are always simple to read, and can be quickly and simply adhered to a variety of surfaces and objects. Being a seasoned sticker specialist, we have an enormous assortment of useful letters and numbers in various colors and versions. Of course, Avery Zweckform's self-adhesive labels are of the highest caliber, rigorously tested, and approved by independent sources. Two sheets in a pack.