Metric Ruler Image - 15 cm Scale with Millimeter Graduations #3012952 (License: Personal Use)

This image displays a precise 15-centimeter metric ruler with clearly labeled centimeter numbers (1-15) and fine millimeter tick marks. The ruler features a rectangular border and uniform black markings on a white background, optimized for clarity and print accuracy. It is suitable for educational materials, technical documentation, or digital measurement tools.

Used in educational websites, STEM resources, design software tutorials, and calibration guides where users need a reliable visual reference for metric measurements; matches intent for “metric ruler image,” “printable ruler,” or “measurement scale.”