Stencil graffiti is a form of graffiti that makes use of stencils made out of paper, cardboard, or other media to create an image or text that is easily reproducible. The desired design is cut out of the selected medium and then the image is transferred to a surface through the use of spray paint or roll-on paint. The process of stencilling involves applying paint across a stencil to form an image on a surface below. Sometimes multiple layers of stencils are used on the same image to add colours or create the illusion of depth.