A Post-it Note is a small piece of paper with a re-adherable strip of glue on its back, made for temporarily attaching notes to documents and other surfaces. A low-tack pressure-sensitive adhesive allows the notes to be easily attached, removed and even re-posted elsewhere without leaving residue.The classic sticky note you know and love is great for leaving reminders or calling out important information. They are available in a wide variety of colors to stand out wherever you need them to. Like all Post-it Products, they stick securely, yet remove cleanly.