Holds stronger and last lasts longer, with 2x the sticking power compared to Post-it® Original Notes. Post-it® Super Sticky Z-Notes let you scribble down your thoughts in a flash. Perfect when you're on the phone or have your hands full. Perfect for vertical or hard to stick surfaces such as computer monitors, doors and walls. Post-it® Super Sticky Notes are made with PEFC certified paper fibres, coming from sustainably managed forests and controlled sources. Made with a 60% renewable resource adhesive from a plant that regrows annually.