Our patent-pending Slit 'N Sew method represents a truly revolutionary improvement by allowing piecing to be done quickly and easily each and every time! Using the CutRite Slit 'N Sew templates, simply use a rotary cutter to make small cuts that are precisely located on the templates. Then proceeding a slit at a time, line up the next slit from each piece that is being pieced together and sew to that slit. Ideally sized to work with standard pre-cuts, such as 5" and 10" squares.