Post-it Super Sticky Notes hold stronger and longer than most self-adhesive notes so you can be sure that your message gets through. Unique adhesive gives you the confidence to leave notes and reminders on multiple surfaces including computer monitors, office doors and walls. Ruled notes stick to almost any surface and don't fall off. They remove cleanly. The paper in Post-it Notes is sourced from certified, renewable and responsibly managed forests. Notes are recyclable. Each pad includes 90 sheets.