The Omnigrid 6.5" x 24" folding ruler features an extra 1/2" width for seam allowances and is used for cutting strips and trimming fabric edges during quilt making or when executing a variety of sewing and fabric craft projects. This ruler is used to cut 6" borders with seam allowances and to cut 6.5" strips for 6.5" blocks. It can also be used to cut strips, borders and bias pieces. You can use it to cut strips and trim fabric edges during quilt making or when executing a variety of sewing and fabric craft projects. The heavy-duty durable acrylic material is designed for use with a rotary cutter or a straight-edge blade. It has multiple degree angle lines for easy pivot of 30, 45 and 60 degree cuts. The laser cut edges allow for smooth, deep cutting and edge markings for accurate measuring. The patented double-sight lines show up on light and dark fabrics. It also has left- and right-hand numbering and angle system.Details:6.5" x 24"Laser cut edgesDouble-sight linesAcrylic