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. Finished triangle size and appropriate strip width are both printed right on the ruler for cutting both half-square and quarter-square triangles. Use the slot on the ruler and the outside edge to mark sewing lines for the Mark and Sew method. To trim oversized half-square triangle blocks, simply use the square for the appropriate size to line up on the seam line and trim. To trim oversized quarter-square triangle blocks, simply use the square and trim line for the appropriate size and trim. 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 – 5-1/2in x 10-1/2in Use this 4-in-1 triangle designed by Brenda Henning for Creative Grids to create half-square triangle blocks four different ways using the same tool. Choose the method that works best for you, or try the one that is featured in your pattern.