Maximum diameter: 90 cm, 150 cm. An excellent tool for creating outlines and circles, also used for edge marking. Use with the included pencil or a fine ballpoint pen. A heavy-duty scribing and marking tool. This pencil compass is a precision carpentry tool made from PP plastic and carbon steel. Description: This compass is a precision carpentry tool made from PP plastic and carbon steel. A heavy-duty tool for plotting and marking. Excellent tool for creating outlines and circles, also used for marking edges. Use with the included pencil or a fine ballpoint pen. Max diameter: 90 cm. Color: orange. Size L: approx. 40 x 150 cm. Size S: approx. 25 x 90 cm. Contents: 1 carpenter compass size S. 1 carpenter compass size L. Note: Color may vary depending on monitor settings. Thank you for your understanding. Please allow 1-3 mm error due to manual measurement.