When conditions make communication tough, Post-it® Extreme Notes make leaving notes and reminders simple, so you can get the work done. Post-it® Extreme Notes are water resistant, tough enough to withstand hot and cold environments and stick indoors and out - to ensure your messages stand out and stay put, wherever you need them. Made with Dura Hold™ Paper and Adhesive. These notes will hold up in hot, cold and wet conditions and will stick to tough and textured surfaces like concrete, raw and painted wood and tile. Post-it® Extreme Notes stick in tough conditions to avoid miscommunication and rework, because no matter what the conditions every job should be a job well done. Make sure your message is seen with a note that sticks in tough conditions.