This Creative Grids ruler is long enough to mark the diagonal of a 6½ inch square. You can either mark the diagonal through the center slot or along the edges of the ruler to mark the ¼ inch sewing line on each side of the center diagonal. Like every Creative Grids ruler, this one is also equipped with the ingenious anti-slip backing.
- Ruler size: ½ x 9 inches
- Product video: youtube-seamguidetool