Omnigrid R125 Quilter's Square, 12-1/2 x 12-1/2-Inch

In general, Omnigrid square rulers are used for secondary cutting of strips, and to square up finished quilt blocks Use with a rotary cutter or a straight-edge blade Diagonal angle line 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