Staedtler pie chart

The Staedler 576 (1-36 mm) pie chart consists of numerous round holes of various sizes. The circle ruler is designed to draw perfect circles. The user selects an opening that corresponds to the desired circle size and draws with a pen or pencil through the opening.
The Staedler circle diagram is a useful aid in the areas of technical drawings, graphic design and education, for example in situations where it is necessary to draw several circles of the same size accurately.

The ruler uses the general centimeter measurement. Measurements from the air divided into millimeters and centimeters. The longest side of the circle model is 23 cm long. The double-sided measuring edge provides flexibility in use.

• Measuring edge: double-sided
• Length: 23 cm
• Color: transparent
• Material: plastic