Wonder Curve RulerThis 6in x 10in 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! 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. Color: Clear Made of: Acrylic Use: Ruler Size: 6in x