Chartpak - CHA01070 Easily apply these 3" vinyl capitalized letters to clean dry surfaces, indoors and outdoors. Ideal for displays, signs, posters and equipment identification. Each letter has permanent self-adhesive backing for easy attachment. Letters are in Helvetica font, and the set includes punctuation symbols: 13 periods, 7 commas, 3 dashes, 2 asterisks, one question mark and one exclamation point.