Post-it Pop-up Notes in 3 in x 3 in size are simple to grab one note at a time. These are the perfect size to keep your thoughts in-sync. These accordion-style notes pop up one after another. All Post-it Notes are recyclable. The paper in Post-it Notes is sourced from certified, renewable and responsibly managed forests. Notes are 3" x 3" . Each pad contains 100 sheets, each pack contains 5 pads, for a total of 500 sheets.