12½" x 12½" Omnigrip Non-Slip Ruler

We use these Omnigrip non-slip rulers everyday in the shop and they are indispensable for your quilting and crafting projects! this 12½" x 12½" square ruler is ideal for cutting, squaring and setting blocks the heavy duty acrylic has a special non-slip surface to help keep your ruler still and in place for precise measuring and cutting laser cut for a smooth edge measurements are in a patented neon green and black so you can see them when working on both light or dark fabrics 45° diagonal lines for triangle cuts, markings for half-squares and quarter-square triangles with it's unique numbering and angle system, it is designed for right handers or left handers extra ½ Inch on two sides for seam allowance for use with rotary cutters like our Olfa Splash Rotary Cutter