This left handed version of the 4-1/2 inch square is a mirror image of the original. Now those that cut left handed will be able to read the numbers and markings right side up. Perfect for projects using 5 inch pre-cut squares The 45 degree diagonal line makes trimming half-square triangles easy and accurate. Easy-to-read black and white markings printed in 1 inch grids and marked in 1/4 and 1/8 inch increments. Use the black numbers printed on white dots and the 1/4 inch grip sides to cut whole inches. Use the patented Turn-A-Round feature to cut 1/2 inch increments by following the white numbers on black circles with the 1/2 inch grip side. The 1/4 inch dashed lines printed on two adjoining sides aid in trimming seam allowances. White horizontal and vertical lines are printed on the square so the center of the ruler is easily distinguishable. Use these lines to square up blocks based on four-patches, embroidered and appliqued blocks. The ruler slides easily over the fabric until pressure is applied. Then our exclusive grip holds the fabric in place while cutting, eliminating slipping and miss-cuts. Total Size 4-1/2in x 4-1/2in