Easy to read black and white markings. Whole inch, half inch, quarter inch, and eighth inch increments are included. Markings for 1/4in and 3/4in cuts are included with cutting slots every 1/4in. Turn the ruler around and use the black and white squares to square up blocks in 1/4in increments up to 6-1/4in.Use the 45 degree lines to trim flying geese units down to 1/4in increments..1-1/2in cuts are highlighted with black stars..Great for fussy cutting and trimming embroidered blocks. The flexibility of the ruler adjusts for the thickness of the embroidery giving you an accurate.Comes with fully illustrated step by step instructions., Manufacturer: Creative Grids