This 8" Log Cabin Trim Tool designed by Jean Ann Wright for Creative Grids can be used to create perfect 8" finished Log Cabin Blocks, Courthouse Steps blocks, and Half Log Cabin blocks. 

The tool features easy-to-read black and white markings on the ruler. Grippers in the template move easily over the fabric until pressure is applied to set them. Easy instructions are included with the ruler as well as a QR code to see a demonstration online.