This amazing ruler folds up to 6" x 8" making it a perfect ruler to bring with you to quilt retreats or workshops. The two-tone markings ensure visibility for use on both light and dark fabrics. Includes 30, 45, and 60-degree angle lines which make it easy to cut precise angles. Made of 2.4mm thick, premium-quality clear acrylic for lasting durability. Manufacturer lifetime warranty.