This functional tool accurately measures up to 1 meter length, marked with both centimeter labels and millimeter demarcations.

With invisible hinges, it can fold down to pocket-size, making it an excellent choice for storage efficiency and portability.

Its simple design requires no assembly and you can print it in place with no supports. I tested successfully with a 0.4mm nozzle at a 0.2mm layer height. Despite any "floating regions" warnings, go ahead and print this tool, offering a seamless 3D printing experience and producing a useful device for precise measurements.

Look no further for a practical, compact, and accurate measuring tool.