Whether you're into paper crafting or quilting, you'll find this square ruler to be indispensable. Paper crafters can use it for half-square triangles and small paper piercing. Quilters can use it as a template for 4" squares, baby quilts and more. Good For: precise measurements and cutting angles for sewing and quilting. Frosted acrylic surface allows black imprinted numbers to be read effortlessly. Frosted surface is non-slip for extra stability and safety when cutting. Designed for accuracy and precision with grid lines marked in a ⅛", ¼", ½" and 1" increments.