Contains 10 interchangeable dies to be inserted into two stamp mounts -- blue and red. Perfect for marking homework and tests. Self-inking stamps re-ink automatically after each impression for quick, repetitive use. Stamp Type: Message; Message(s): A+; CHECK MARK (ICON); FROWNING FACE (ICON); SMILEY FACE (ICON); STAR (ICON); THUMBS UP (ICON); GREAT JOB; GOOD WORK!; NEEDS WORK!; WAY TO GO!; Ink Types: Self-Inking; Impression Diameter: 0.63".