Features Marti Michel's special engineered "no dog ears" corner. Perfect for cutting 45-degree diamonds and mitered corners on quilt borders. Also perfect for mitered sashings and blocks like Attic Windows. Can be used the same way you use a 6- x 24-inch ruler, too. Purple verticals marked every 1/8-inch to make cutting strips easier. Different 1/8-, 1/4- and 1/2-inch lines for easier positioning; heavier lines every 1/2-inch for easier counting.