Stencils are tools used to create designs or letters by allowing paint or ink to pass through cut-out shapes. They are often made from materials like plastic, cardboard, or metal and can be used on various surfaces, including walls, fabric, and paper. Stencils are popular in art, crafts, and home decor for adding patterns or text easily and consistently. The process of using a stencil involves placing it on a surface and applying paint or ink over it. Once the stencil is removed, the design remains, making it a quick way to achieve detailed artwork. Stencils can be found in many forms, from simple shapes to intricate designs, and are widely used by artists, crafters, and even in commercial applications like signage.