This 10 Degree Wedge Ruler, designed by Cheryl Phillips for Creative Grids®, creates wonderful circular quilts. Thirty-six wedges make a circle up to a 45in diameter. Use the same wedge to cut extensions to create a 66in circle. · 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. · 20, 30, 45, and 60 degree angled lines allow for endless design possibilities. · Inch markings begin with 1-1/2in and end with 22-1/2in. · Cut wedges from whole strips or from strip sets. · 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: 4-1/2in x 21in 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.