Lightweight and durable scale stick / ratio ruler made of aluminum. Scale sticks are used for conversions of different proportions, e.g. in planning and floor plan work. The six most common ratio conversions are marked on the measure, which you use to convert real-world measurement results to a reduced size on planning paper.
- The length of the scale stick is 30 cm (12″).
- Includes scales: 1:20,1:25,1:50,1:100,1:125,1:400