2,E as y To Use : Our dedicated Sewing Acrylic Ruler holds the fabric in place while cutting so you won't miss a cut, easy to use, and is great for sewing quilt lovers. 3,L eft -Hand Friendly Design : Use 30 degrees, 45 degrees, and 60 degrees to cut trapezoids, triangles, rhombus, and parallelograms, making Fabric Cutting Ruler easy for the left hand as well.