Machine cut Celtic knot border stencil. Two styles to choose from and multiple sizes. Made from 10 mil, 0.010" thick, flexible semi-rigid coated polyethylene. Non-adhesive material. This material can withstand a 180° F application temperature; reusable, food-safe, non-toxic and recyclable. Resists inks, paints and stains. Coating protects against runs and smears that are common with stencils.