The rulers I bought come in a set of three Lifesaver-colored couples that are themselves 1/16-, 3/16-, and 1/4-inch thick. Select the thickness you want (1/4-inch for cookies, but maybe a bit ...

If the RULER 4.0 Kickstarter campaign is successful and the project progresses smoothly, ... “This 2-in-1 ruler has millimetres and centimetres on one side, inches on the reverse.