My Favorite Things Smart Mask - Centre Strip. When pattern is the goal, but you still want to shine a spotlight on your sentiment, Smart Masks are the answer! Available in both a Centre Strip option as well as a High/Low version, you’ll always have a solution to your greeting placement dilemmas. Use Smart Masks as a base and layer pattern-building stencils, background stamps, or your own custom pattern-building techniques on top. Once you’re done, you’ll be left with a clean strip of background to add your message to. The pattern blocks on this stencil measure 3 3/4” x 2 1/8” leaving a 3/4” wide strip for your sentiment. Includes one 4.5"x 6" stencil.