Maximum diameter: 90cm150cm. Excellent tool for making outlines and circles, also used for marking edges. Used with the included pencil or with a fine ballpoint pen. Heavy duty scratching and marking tool. This pencil compass is a carpenter's quality precision tool made of PP plastic and carbon steel . Description: This compass is a carpenter's grade precision tool made of PP plastic and carbon steel. A tracing tool and sturdy marking tool. Excellent tool for making outlines and circles, also used for marking edges. Use with the supplied pencil or with a fine ball point pen . Max diameter: 90 cm Colour: orange Size L: approximately 40 x 150 cm. Size S: approximately 25 x 90 cm. Contents: 1 carpenter's compass size S 1 carpenter's compass size L Note:< /p> Color may vary depending on your monitor's display settings. Thank you for your understanding. Since measurements are taken by hand, the sizes indicated may vary by 1-3 mm.