What's the most primitive method we quilters have in our craft? Drawing the lines on a square to make half square triangles or to sew point to point. I don't know about you, but I really despise that chore. Well NO MORE! This too is another life changing product! Never draw a line again, and make perfect angles for half square triangles, flying geese, and more. Clings to smooth sewing surfaces, repositions as needed, and allows easy access to your bobbin. Your chain piecing will never be the same.