This ruler designed by Karla alexander for Creative Grids® is used to cut circles, semi-circles, and quarter-circles from 3in to 15-1/2in and every 1/2in in between. · 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. · Designed to be used in a variety of ways, so additional markings are included for techniques such as fusible applique, piecing, and turned-edge applique. · Use a 45mm rotary cutter. Hold rotary cutter straight up and down for ease of cutting and guide it along the inside edge of the curve. · Fold lines and 1/4in seam allowance lines are clearly marked. Follow the instructions for the desired shape. And 22-1/2, 30, 45, 60, and 67-1/2 degree lines are included for more design possibilities. · Comes with fully illustrated step by step instructions. · Scan the QR Code printed on the ruler to view a how-to video of these features and to see the patterns that can be made with this ruler. Total Size: 11-3/4in x 18-1/2in Creative Grids® Rulers are made in the USA and sold through independent quilt shops as well as select online retailers. Creative Grids® products have a MAP/IMAP (Minimum Advertised Price/Internet Minimum Advertised Price) Policy. Please do not advertise them for less than the suggested retail price.