Joggles-Stencil & Mask Combo. Stencils are thin sheets of plastic, mylar or similar material, with areas cut away to form a shape or design. Made from 10 mil thick mylar that will stand up to any application where heat is not required. The perfect tool to expand your creativity. This package contains one 12x9 inch stencil sheet. Comes in a variety of designs. Each sold separately. Made in USA.