Companion Angle covers all the bases. Thick and sturdy so that they will stand up to years of wear. Cut trapezoids of many sizes cut triangles 1 to 10 and cut half block triangles for small blocks set on point. Built in 1/4 seam allowance. Ideal for use with a rotary cutter. The Companion Angle measures approximately: 11-1/4 by 7-3/4 by 7-3/4-inch.