Looking through the rosy red tint of the Ruby Ruler®️ allows you to see value instead of color. It allows you to view the fabrics more as dark and light forms. This is the color value, and a fabric can be light or dark in value based on the other fabrics that you’ve chosen to use with it. Using what you see when you look through the ruler, you can create a pile of “light” value fabrics and a pile of “dark” value fabric. From these, you can create scrappy layouts for and endless number of quilts that are uniquely yours! This nifty little tool serves double duty too. Use it to square up and trim up fabrics and pieced units to 5″ and smaller.