Altenew's coordinating mask stencils are designed to work perfectly with their stamp sets! These handy mask stencils are made out of a thinner material than our regular stencils so you can easily stamp over them, or use with your favorite coloring mediums! Position the positive cut pieces over their coordinating images with a bit of temporary adhesive, then stamp over with another image. When you remove the stencil, it will look like the second image is behind the first! Coordinates with the Bold Bunch Stamp & Die Set (both sold separately).