With the Ruby Ruler®, you can see color value more clearly and find the sparkle in your quilts. Create a cohesive look in a scrappy quilt filled with lots of your favorite fabrics. Look through the red lens to turn a group of all kinds of prints into simple light and dark values, which makes it easier to balance your layout and create “quilt sparkle.” And it’s also a cutting ruler! Use it to cut and square up units and fabric pieces up to 5”.