The Bias Binding Simplified Ruler has markings to easily cut 2, 2-1/4 or 2-1/2 inch binding. Refer to the illustrations printed on the ruler for a tutorial on how to cut bias binding. The number of inches of bias binding that can be cut from yardage is printed right on the ruler! Scan the QR Code ? or view the video on-line ? for a complete tutorial including how to negotiate corners and join the binding strips when they meet.