These pre-cut adhesive backed vinyl stencils are perfect for mirror decorating, door glass accents and wood carvings. Designed for chemical etching (with Armour Etching Cream), mirror removing, sandblasting, painting and staining of glass, mirror, tile, metal, granite and other non-porous surfaces. Each stencil includes complete photo illustrated instructions for a variety of applications. Not reusable. Most are approximately 6" or 7" square.