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 unique keyhole cutout allows you to rotary cut both triangles with one tool. Finished unit sizes are clearly shown in black boxes on the right hand side of each triangle. Fabric strip width requirements for cutting each size and shape are printed in white boxes along the left hand side of each triangle. Make quarter-square triangle blocks by following the white numbers printed on black circles down the middle of the 90 degree triangle. Make half-square triangle blocks by following the white numbers printed on black dots down the right hand side of the 45 degree triangle. 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 – 13in x 13-1/4in This multi-sized triangle ruler, designed by Rachel Cross for Creative Grids, is used to cut the parts for eleven different sizes of flying geese units ranging from 1in x 2in to 6in x 12in finished sizes.