Post-it Marseille Assorted Colors Pop-up Notes 3" x 3" 100-Sheets designed for use in Post-it Pop-up Note Dispensers (sold separately). Design offers the convenience of grabbing just one note, with just one hand. Alternating color design keeps your ideas looking fresh. Accordion-style notes pop up one at a time from a specially designed dispenser (sold separately), keeping Post-it Notes at your fingertips. Pads are the perfect size for notes, numbers and lists and part of the Ultra Collection. Re-positionable adhesive won't mark paper and other surfaces. Paper used comes from well-managed forests where trees are replanted.