Use this stamp to say 'Show Your Work' to students on their assignments, papers, homework, tests / exams, and projects. This stamp is ideal for repetitive stamping because the die automatically re-inks itself by rotating onto a built-in ink pad. When impression begins to fade, simply add a few drops of ink for many more impressions. This stamp is perfect for teachers or parents. Whether in the classroom or at home, this stamp will deliver the colorful impression you have been looking for!