Create the illusion of curves with this Skinny 10 in. Curvy Log Cabin Trim Tool, designed by Jean Ann Wright. Easy to read black and white markings with strip widths and center square measurements printed right on the tool. One round of logs is made up of two skinny strips and two wide strips. Each round of logs is trimmed to size before the next round is added making every block the same size when completed. Comes with fully illustrated step by step instructions or scan the QR Code printed on the ruler to view a video demonstration. The ruler slides easily over the fabric until pressure is applied. Then, the exclusive gripper holds the fabric in place while cutting, eliminating slipping and miss-cuts!