Curves for days! The Elvira quilting tool is quite handy when quilting wavy or continuous curve lines. Creative Grid's Elvira quilting tool can be used to quilt multiple arcs in multiple directions without rotating your quilt or working form the back of your foot. Also, with the Creative Grids, exclusive grips on the back, your ruler will not slip while quilting. Printed along the quilting tool are black and white dashed guidelines that are visible on all fabric colors. Creative Grid's rulers are designed using high-grade acrylic and are made in the USA.