The Basic Range series does just that as they are easy to see and easy to read. By eliminating the 1/8 inch markings and the Turn a Round feature, literally over half of the markings are removed. The remaining 1/4 inch, 1/2 inch and 1 inch markings are printed with a whole inch grid. Without the Turn-a-Round feature, a 6 x 12 inch ruler truly measures 6 x 12 inches, not 6.5 x 12.5 inches. This 6 x 12 inch rectangle features black numbers printed on white squares that are easy to read and differentiate this series. Since 1/2 inch cuts are the most frequently used, these black and white dashed lines are prominent and are visible on light AND dark fabrics. Use the 45 degree angle to square up half-square triangles in whole and half inch increments.