Omnigrid 12.5 " Square Ruler
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Includes diagonal angle and an extra 1⁄2″ for seam allowances. Use to cut over-sized squares, large rectangles, borders over 6″, for checking finished size or alignment of sewn seams, cutting and checking large 45° triangles or even as a portable light table. Made of strong and durable premium quality acrylic plastic. Unique black and yellow double sight lines for easy viewing when working with light and dark fabrics. Laser cut to within 0.002″ accuracy with a smooth finish. Specially designed for right and left handed use.