This ruler measures up to 30cm when extended but for measuring smaller items, it can be folded and used comfortably in its half size. You can even use it as a protractor to measure angles using the angle measurements on the ruler's hinged central axis. On one side, the numerical scale starts from right from the edge of the ruler, making it easy to measure along a wall. Holes in the ruler placed at each cm spacing allow you to easily create markings and connect them for graphs, diagrams and charts.
