Wrights/EZ Acrylic Templates cover all the bases. They're thick and sturdy, so they'll stand up to years of wear. The collection is a must for every quilter! Easy Angle 4.5"- Cut triangles, squares, and attic window shapes all from the same strip of fabric. Cuts half square triangles from 1/2" to 4" (finished size). Built in 1/4" seam allowance. Ideal for use with a rotary cutter. Great for mini quilts.