CGR Stripology XL RulerThe Stripology XL Ruler is a multipurpose tool for cutting strips, squares, rectangles, diamonds, and triangles. It can also reduce your cutting time by 75 percent. Easy to read black and white markings. Whole inch, half inch, and eighth inch increments are included. Cutting slots are every 1 2in. Markings for making 1 4in and 3 4in cuts are included. Use the black lines to square up blocks in whole inches up to 12in. Use the white lines to square up