A mask is the opposite of a stencil. These mini-versions of the originals are made of the same flexible materials with a tacky, repositionable adhesive on the back. Place this mask on your project surface and then apply any medium such as watercolor, alcohol inks, acrylic paint, spray paint, dimensional paints or ink dauber right over the top of the mask. Remove the mask immediately and allow to dry. These masks are from Tim Holtz Idea-ology collection. On the back of the package is a web address where you can look up demos and instructions for different projects.