Omnigrid 6-Inch-by-24-Inch Quilter's Ruler Use this ruler to cut strips, shapes, and bias pieces Made from durable premium quality acrylic plastic and laser cut for a smooth edge that allows for easier deeper cutting of fabric layers Patented double line effect is printed in black and yellow which allows the user to see the grid on both dark and light fabrics Has 30, 45, and 60 degree angle lines marked for easy alignment of fabric Measures 6 by 24 inches