The Creative Grids 90 Degree Quarter-Square Triangle ruler, designed by Rachel Cross, cuts quarter-square triangles directly from fabric strips up to 8-1/2" wide. Sew four of the triangles together and you can make blocks up to 16" finished, without cutting and recutting squares first.
It's made in the USA from high-quality acrylic with precise measurements. The exclusive Creative Grids non-slip grip lets the ruler glide over fabric while you position it, then holds in place when you apply light pressure, so it doesn't shift as you cut. Black and white markings make the lines easy to read on both light and dark fabrics.
The vertical center line helps you fussy-cut stripes and directional prints so they line up across your blocks, and it can also be used to cut half-square triangles. It's a practical tool for hourglass blocks, Ohio stars, and flying geese variations, and it's especially handy when you're cutting from precut strips or border stripes.