The Sew Kind of Wonderful Wonder Curve Ruler is a must-have tool for any sewing enthusiast. This curved ruler is designed to make cutting and squaring up blocks a breeze. With its added colored reference lines, you can easily achieve precise and accurate cuts every time. Whether you're working on a quilting project or any other sewing project that requires curved pieces, this ruler will be your go-to tool. It's durable, easy to use, and will help you create beautiful and professional-looking results.