Never draw another line! The template clings to smooth sewing surfaces so it is always in position, ready to sew any 45degree angle accurately. Use to make half-square triangles, flying geese, snow balls, miters, and binding. Includes 1/4in and 5/8in seam guides. Customizable to any sewing set-up. Used and loved world-wide. No one likes drawing lines so this is the perfect add-on sale at your counter.