No punching out of letters, no staples, no pins and no tape required! A unique adhesive makes these letters removable, repositionable and reusable. They adhere to any clean and dry surface that is smooth or slightly textured (even wood and painted brick wall). Fade resistant, acid free, leave no residue and never become permanent. Great for bulletin boards, banners, labeling, and more! Each pack contains uppercase letters along with numbers and punctuation marks. 4" letters. 78 characters per pack.