The Omnigrid 4in x 8in ruler with 1/8in grid is excellent for miniature quilts and for scrapbooking. In general, Omnigrid rectangle rulers are used for cutting strips and trimming fabric edges during quilt making or when executing a variety of sewing and fabric craft projects. Use with a rotary cutter or a straight-edge blade. 1/8in grid markings for drafting and cutting. Multiple degree angle lines for easy pivot of 30°, 45° and 60° cuts. Edge markings for accurate measuring. Laser cut edges for smooth, deep cutting. Patented double-sight lines that show up on light and dark fabrics. Heavy-duty durable acrylic material. Left- and right-hand numbering and angle system.