12.5in Square Up Ruler

Ensure that your quilt tops lie flat every time, carefully square up your blocks before sewing them together! By squaring up each unit as you complete it, your finished blocks will fit together perfectly. Use the vertical, horizontal, and diagonal lines to square up any 12 inchpieced, appliqued or embroidered block. The Ruler has 4 cutting edges, all with 1/4 inch seam allowances for a perfect finished 12 inch block. Ruler has clearmarkings for accurate measuring. The Ruler is made of heavy gauge acrylic and is laser precise.