Omnigrid Omnigrip Non-Slip Diamond Free Quilter's Ruler-20-1/2 x 20-1/2 inch, Man-Made-Material, 20.5" x 20.5"

Omnigrid Omnigrip 20-1/2" x 20-1/2" Non-Slip Square Quilting Ruler

Omnigrip by Omnigrid Non-Slip Ruler, 5" Square

Omnigrid 15" x 15" Square Quilting and Sewing Ruler