From Sew Kind of Wonderful is their new Wonder Curve Ruler. Introducing the newest tool from Sew Kind of Wonderful - Wonder Curve Ruler. This 6" x 10" piecing ruler has colored lines and markings which makes it wonderfully simple to make a combination of curved blocks which are used repeatedly in WCR Patterns! These unique lines and markings make using the Wonder Curve Ruler easy as, 1-2-3! Cool WCR feature: The three bold colored lines also make it easy to scale a block larger or smaller just by aligning fabric with the different colors and marks. Sew Kind of Wonderful have created a new series of patterns for this ruler which are sold on the website.