Omnigrid Ruler 3 1/2" by Omnigrid

The 3-1/2” 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