TQM Products have just the right notions to make your sewing just a little bit easier. The Bias Ruler- A Clear acrylic ruler with Black markings, both straight and diagonal lines, and measures about 27"x 2.5" when open. There are diagonal cuts on both ends. It is the quickest way to get perfect bias cuts for making binding. Make up to 280" of binding from 1/2 yard of fabric or up to 100" from a Fat Quarter. Instructions printed on ruler.