ChromaLabel Ruler Tape | Repeating 12 Inch Imperial & Metric Measurements Imprint (Yellow) 1 in. x 13.9 yds | Repeats every 12" (41 complete, stick-on 'rulers' per roll) Ideal for classrooms as a teaching aid, desks, hobbyists, computer monitors Peel and stick almost anywhere, removes cleanly, repositionable Easy to write on with a felt tip marker (ink wont bleed through) Imperial 12 inch sections on top, Metric 30 cm sections on bottom