Acrylic Quilters Ruler & Non Slip Rings | Double-Colored Grid Lines | Set of 4We make our quilters rulers clear so you can see exactly what youre doing. Contrasting bright and dark lines make it a snap to see what youre doing no matter what kind of fabric you have underneath. The measurements are embossed onto the surface and allow for precise cutting at any angle. All angles are vertically mirrored to make it easy for left and right handed people to use the ruler effectively. High Quality Square Ruler for Quilting Each laser