The Omnigrid 12.5" square quilting ruler is a great ruler to have on hand. Use this to square up blocks up to 12.5 inches!
Guidelines4Quilting
Scant 1/4 seam allowance - Tips and Tricks - Diary of a Quilter
Omnigrid Ruler - 12-1/2 x 12-1/2 inches
5 Minute Guide To Quilting Rulers - Suzy Quilts
Dritz-Omnigrid: Non-Slip Ruler The Clear Acrylic Ruler Has A Special Non-Slip Bottom Surface To Help Keep The Ruler Still And In Place When Measuring
Omnigrid Omnigrip 1/2 in Quilting Ruler, 2-½ x 12-½, Clear
32 Quilting Supplies for Beginners & Beyond (Tested)
5 Minute Guide To Quilting Rulers - Suzy Quilts
The Omnigrid Rectangle Quilting Ruler will make a useful addition to your sewing supplies. It is a must-have for new and professional quilters alike.
Omnigrid Rectangle Ruler, 1 x 12
Omnigrid 9-1/2 X 9-1/2 Square Quilting And Sewing Ruler : Target
Omnigrip Non-Slip Quilter's Ruler