Creative Grids Quilting Ruler 12 1/2" Square

This is a 12-1/2 inch square ruler with easy-to-read black & white markings. Ruler is marked with a one-inch grid with 1/8" and 1/4" increments within. Use numerical white dots and 1/4" grip sides to cut whole inches Turn-a-round to use the 1/2" grip side & numerical black dots to add the seam allowance Gripper holds fabric while cutting.