Armour #21-1600. Use to create custom stencils. Just like the pre-cut Over 'n' Over stencils, your designs can be used multiple times. Pens, pencil and markers all work on the material for tracing out your pattern. For use with etching cream, sandblasting, water-based paints, and even body paints, according to the manufacturer. When using for sandblasting, each stencil can be reused between 15-20 times depending on the amount of pressure, care of use, distance between the tip of the blasting gun and the stencil, and the type of abrasive (we recommend between 180-220 grit size preferably 220). Size: 5" x 8".