Economical pack of 10 blank stencil sheets are great for making your own stencils. These Mylar sheets are frosted on one side so they accept pencil, charcoal and paint but eraser cleanly for repeated use. This special film is designed to lay flat and will not tear, absorb moisture or discolor with age. Acid Free and archival safe. Pack of 10 sheets which measure 8-1/2" x 11" each and are 4 mil thick.