The measuring tools in my store were unavailable for a while because I took a little time to make some adjustments to the design. The main change is to their length - I shortened them from 9" down to 7". I noticed that I was always reaching for the 7" pair that I have at my bench, and so it seemed obvious to make that size as my standard offering. Whether you are laying out dovetails or forging parts to size, these dividers are a great size for a variety of work in a range of disciplines. I use my pair everyday.