Creative Grids Curvy Log Cabin Trim Tool Quilting Ruler Template for 6" Finished Blocks CGRJAW6 Create the illusion of curves with this 6 inch Curvy Log Cabin Trim Tool. Mark the wrong side of the center square through the holes on the ruler. Sew a round 2 narrow strips and 2 wide strips. Trim. Add 2 more rounds for a perfect 6 inch finished block. Sew four blocks together to piece a circle which finishes to 12 inches. Exclusive gripper holds the fabric in place while cutting, eliminating miss-cuts Comes with fully illustrated step by step instructions or scan the QR Code printed on the template to view a video demonstration.