Made in the USA with high quality acrylic and precision measurements ensuring accuracy for your quilting, sewing, patchwork, and crafting projects. Creative Grids exclusive non-slip grip allows you to easily slide the ruler over the fabric until positioned correctly. Then, when slight pressure is applied, the grip holds the ruler in place, eliminating slipping while you cut. Easy to read black and white markings. The top tip is trimmed so you can cut triangles and matching squares from the same strip. Dashed 1/4in seam allowance is printed around the entire edge. Horizontal lines marked every 1/4in for cutting from various widths of strips. Comes with fully illustrated step by step instructions. Scan the QR Code printed on the instructions to view a how-to video and to see the patterns that can be made with this ruler. Total Size – 8-1/2in x 9in Use this 45 degree triangle ruler, designed by Rachel Cross for Creative Grids, to cut half-square triangles from strips up to 8-1/2in wide.