PolyTough stencils are more flexible and heavier than other stencils allowing them to conform to any smooth or rough surface that needs marking * You always get the sharpest, most accurate stencil markings possible * PolyTough stencils make cleanup a snap: When the paint dries it simply flakes off * PolyTough stencils are simply the best stencils made and are the only stencils backed with a LIFETIME WARRANTY