Features: 100% brand new and high qualityProfessional compass compass with universal adapter, beam extension for geometry, art, elaboration and drawing. Lockable, heavy-duty compass for repeating measurements or drawing circles and arcs, does not skip or slip out of your control. Easy to carry and store. Adjusting screw allows quick and positive adjustments. Large Geometry Compass Professional Woodworking Compass, Great for Woodworking or Office, Home. Specification: Option Model: 6in,8in,10in,12in Size:6 inch: 260mm/10.24inch, Max Angle: 60 Degree, Full Length: 150mm/5.91 inch8 inch: 374mm/14.72 inch, Max Angle: 60 Degree, Full Length: 200mm/7.87in10 Inch: Diameter: 514mm/20.24 inch, Max Angle: 60 Degree, Full Length: 250mm/9.84 inch12 inch: Diameter: 594mm/23.38 inch, Max Angle: 60 Degree, Full Length: 300mm / 11.81in Material: AlloyColor: BlackPackage Included: 1 x CompassesNote: Please allow 1-3cm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item