This gentle curve is easy to cut and sew, making quick curves a breeze. The curved cut-out lets you cut right away, eliminating the need to trace the shape first. A reference line allows you to space out your curves as you go. Cuts curves about 6" long from point to point. 'QCR Mini' mini curve and square-up acrylic ruler, includes QCR Mini runner pattern, by Sew Kind Of Wonderful Contemporary Quilt Designs.