Handle large blocks and background cuts with the SEW EASY 15 1/2 in square ruler, a big-format measuring guide for quilters working on borders, appliqué, and roomy layouts. Ruler size is 393 x 393 mm (15 1/2 x 15 1/2 in), giving plenty of coverage to align fabric, square quilt sections, and trim oversized pieces with confidence. Use it to measure and check accuracy on larger units so seams stay straight and corners remain true as you assemble the quilt top.