The Curves for Rectangles ruler is one of a range of rulers created to make cutting gentle curves from squares and rectangles simple and easy. Cut gentle curves from six different sizes of rectangles that are easy to piece. Use these curved, pieced units to replace any rectangles in a traditional block to add a sense of movement for a dramatic effect. The finished rectangle is 1" less than the cut size. Our exclusive embedded gripper strips hold the fabric while cutting when pressure is applied.