Add holiday cheer to your glass items. Sizes are approximate..... width x height Narrowest letter- 1/16....." wide Widest letter- .75"" .....All capital letters- .75" high ARMOUR PRODUCTS-Over'n'Over Re-usable Glass Etching Stencils are flexible multi-use stencils that easily adhere to glass mirror ceramics metal and other non-porous surfaces so you can easily decorate and personalize your project that involves sand etching glass etching or painting. Use these stencils with our Armour Etch glass etching cream, water-based paints and even Body and Face Painting Sand Blasting 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).