These Self-Adhesive Letters are a time saver! No more punching out letters, no staples, no pins and no tape required! A unique adhesive makes these letters removable, repositionable and reusable. They are easy to use - just peel and place. They adhere to any clean and dry surface that is smooth or slightly textured (even wood and painted brick wall). Fade-resistant, acid free, letters leave no residue behind, and never becomes permanent. Each package contains upper case letters along with numbers and punctuation marks. The 4" letters have 78 characters per package. Ideal for bulletin boards, signs, posters, presentation boards and much more.