The 10 in. Wonky Log Cabin Trim Tool, designed by Jean Ann Wright, puts a fun twist on a traditional block. It was created to work with 2.5 in. strips for both the logs and center squares, making it precut friendly. After adding each round of logs, place the appropriate centering square on the ruler over the center square of the block and trim. Since each round is trimmed before adding the next one, your final trim squares up the block, making it ready to be used in your project. The easy to read black and white markings make it easy to line up on your block for trimming. Strip widths and center square dimensions are printed right on the tool. 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! The 10 in. Wonky Log Cabin Trim Tool comes with fully illustrated step by step instructions or scan the QR Code printed on the ruler to view a video demonstration.