Omnigrip 20½" Square Ruler

The Omnigrip 20½" square has a diagonal line for triangle cuts; the ruler has an extra ½” on two sides for seam allowance.

• In general, Omnigrip square rulers are used for secondary cutting of strips, and to square up finished quilt blocks

• Use for quilting, sewing and crafts – or any DIY project that calls for cut fabric

• Use with a rotary cutter or a straight-edge blade

• The 20½" square ruler has the following standard Omnigrid / Omnigrip features:

• Patented non-slip backing to hold ruler in place during cutting

• Edge markings for accurate measuring

• Laser-cut edges for smooth, deep cutting

• Patented double-sight lines that show up on light and dark fabrics

• Diagonal line for triangle cuts

• Heavy-duty durable acrylic material

• Left- and right-hand numbering and angle system