Superior Quality Sew Easy Designer Ruler. A Grading Rule With 1/8 And 1/4 Inch Increments Together With A Fine Metric Scale Measuring 610mm (24 Inches). Wide Enough To Use With A Rotary Cutter, This Versatile Accessory Is Ideal For The Professional Designer, Home Dressmaker And Student. Please See Pictures For Full Item Details & Specifics. Please See Store For Full Range