Post-it Super Sticky Notes feature a unique adhesive so your notes will stick securely to more surfaces. Now you can stick your notes where they'll really get noticed - like monitors, doors and walls. The 4" x 4" size has lines to keep your notes straight and is perfect for sharing information with others. Super Sticky Notes hold longer and stronger than original notes yet remove cleanly. Familiar and attention-getting, Canary Yellow Notes help get your message across. Super Sticky Post-it Notes are recyclable, and the paper in Post-it Notes is sourced from certified, renewable and responsibly managed forests.