This is is the Triangles on a Roll Quilt Book from It's Sew Emma. Let's get to the point with 1/2 half square triangles. They are the best when it comes to creating beautiful, awe-inspiring quilts! Our new Triangles on a Roll Quilts Book is a compilation of 16 quilts that let half square triangles sparkle and shine. With designs featuring eight different sizes of Triangles on a Roll(TM), you are sure to find several that are sew right for you! We also sell a number of different sizes of Triangles on a Roll (TM). If you don't see a size you want, send us an enquiry and we can see if we can bring it in for you.