- It's the The Cutting Corners Ruler™ brought to us by Cozy Quilt Designs. 

- The Cutting Corners Ruler™ gives you the simple and accurate measurements to eliminate a corner from a block, a square, a rectangle or triangle while leaving the seam allowance on the remaining piece. Just add another fabric (pieced or not) and turn plain blocks into complex beauties.

- The ruler has markings from ½" corner cut to 5" corner cut, giving you many options in one great tool. No seam allowance to add!

- Use this technique to introduce a new color or create stunning secondary designs with pieced replacement triangles. 

- Download the pdf of 16 pages of fantastic step-by-step directions! - The directions include a bonus pattern to create the sashing stars and the pieced setting triangle pictured left

Here is the download for the instruction booklet.