Please note this item comes with a plastic screw, not metal as pictured.
The "Dot Young" seam guide helps you sew straight, just like a ruler helps you draw a straight line. This low vision sewing aid adjusts to two different heights and has three different guide edges. With this useful tool, you can make perfect seams, top stitching, quilt blocks, rounded necklines, welt seams, pockets, and more! Packaging contains detailed instructions for use.