Omnigrid 8.5" Square Ruler
The Omnigrip 8.5" square has a diagonal line for triangle cuts; the ruler has an extra 1/2" on two sides for seam allowance. Ideal for secondary cutting of strips, and to square up finished quilt blocks. Diagonal line for triangle cuts; Left- and right-hand numbering and angle system. Patented non-slip backing to hold fabric in place during cutting.