A must-have tool for Short-arm, mid-arm, long-arm, and domestic sewing machine quilters. Complete Straight Line Designs with ease. With the "Fine Line®" you don't have to shy away from stitch-in-the-ditch or cross-hatching anymore! Designed for all types of quilters, quilting machines, and right or left handed quilters. The ruler base is 1/4" (.236 thick acrylic) thickness and is 2-1/2" wide. By transferring the ability to control the ruler with your fingers using the finger grips, you will ease tension in your shoulders while quilting, the placement of your fingers on the ruler is a natural position for your hand and your arm. You can machine quilt!