Post-it Pop-up Notes, 3 in. x 3 in., are accordion-style notes specially designed to work in Post-it Pop-up Note Dispensers. With these notes, you’ll always have a note nearby to capture great ideas. Unique adhesive is designed to work on paper or in planners. Use for notes or reminders to yourself or others. Canary yellow helps your notes stand out. Free pads in bright colors allow you to keep your message front and center. 18 Pads/Pack, 100 Sheets/Pad.