Black Ruler Icon

Here's a straightforward icon of a ruler, presented on a dark background. The ruler itself is rendered in black, accented by a distinct light-colored border. You can clearly see the measurement markings, making it instantly recognizable as a tool for precision. A gentle shadow gives the icon a touch of depth, making it suitable for designs that need a clear and simple representation of measurement or educational themes.

ruler - icon - black - measurement - tool - education - precision - school - geometry