- Staedtler professional geometry box is a high-quality solid metal compass with quick-setting push-button mechanism and centre wheel.
- It has hinged lead, needle legs, interchangeable lead part with shank 4mm and interchangeable shouldered/ pointed needle.
- The maximum circle approx. 400mm, with extension bar approx 635 mm with a length 170 mm.
Staedtler Professional Geometry Box