2 piece Build a Sweater stencil set. You can stencil the sweater opening one color and / or layer a pattern stencil with it. And then do the ribbing with another color. Any of our 4some stencils or our alphabet sets will fit in the sweater opening! Design your own ugly sweater or monogramed sweater! Design size is 3.25" x 3.08". Overall size approximately 5.5" x 5.5". PINK sections in image are the open sections. Stencils are 5mil Food Grade plastic, washable and reusable.