*The sale price and retail price are the same due to the manufacturer's regulated pricing. This 12" Wave Ruler designed by Judy and Judel Niemeyer will add a quick curve to any traditional or paper-pieced block measuring 6" or 12" in width and 3.5" or greater in length. Compatible with the Quiltworx Charm Elements, it will create a variety of layout options!It features easy-to-read black and white markings and the popular Creative Grids grip. The ruler slides easily over the fabric until pressure is applied; then, our exclusive gripper holds the fabric in place while cutting, eliminating slipping and miss-cuts! #CGRWAVE For more Creative Grids Rulers with FREE SHIPPING click on the link.