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. Use the 45 degree side to cut half-square triangles. Use the 90 degree side to cut quarter-square triangles. Markings on ruler show finished size squares. Comes with fully illustrated step by step instructions. Scan the QR Code printed right on the ruler to view a how-to video and to see the patterns that can be made with this ruler. Total Size – 9-1/2in x 6-1/4in This multi-sized triangle ruler, designed by Rachel Cross for Creative Grids, features two triangles in one.