Create the illusion of curves with this 6" version of our popular Curvy Log Cabin Trim Tool. Mark the wrong side of the center square through the holes on the ruler to ensure a perfect seam allowance. Then sew a round – two narrow strips and two wide strips and trim. Add two more rounds to complete a perfect 6” finished block. Sew four blocks together to “piece” a circle which finishes to 12". Combine these blocks with other blocks for unlimited design possibilities.