ZDD Specification: Material: stainless steel Silver Angular division: 0-180 Ruler graduation: 0-15cm Length: approx. 287 mm Protractor diameter: approx. 150 mmFeature: Professional tool for drawing or measuring angles or lines. The round protractor is double graduated from 0 to 180 and the ruler from 0 to 15 cm. It can be used to draw radial lines, adjust chamfers and transmission angles, etc. Adjust the protractor by loosening the screw. High strength and hardness. Accurate and reliable. Easy to use. Durable in use.Delivery content: 1 x protractorNote: Please allow 0-1cm size error due to manual measurement. The object color shown in photos may differ slightly on your computer monitor because the monitors are not calibrated the same. Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same.