Sticky notes are a piece of paper with a re-adherable strip of adhesive on the back, designed for temporarily attaching notes to documents and to other surfaces: walls, desks and table-tops, computer displays, etc. They are available in wide variety of colours, shapes, and sizes.
Also know as Post It notes, Stuk Notes, Respositionable Notes, Sticky Notes, Stickies use a low-tack adhesive to be easily attached and removed without leaving marks or residue.