Uniquely removable, repositionable and reusable letters! Just peel and place - no punching out, no staples, push pins or tape needed. Fade-resistant and tear-resistant vinyl. There's no residue, and they won't harm surfaces because the adhesive never becomes permanent. Includes uppercase and lowercase letters, numbers and punctuation marks. 154 characters per package. Capital letters measure approximately 4" tall; lowercase letters measure approximately 3" tall. Acid-free. Blue.