Architectural Metal Scale Ruler 12", Laser-Etched Aluminum Drafting Ruler for Architects, Students, Draftsman, and Engineers -Black-

Features: Scale clear, built-in scale 30cm long with a protective sleeve Scale accurate, easy to carry Excellent material, durable and lightweight, not easily deformed, smooth lines Tri-scale precision for drawing paper Use just enough length, high color contrast, easy to read engraved number Color: Black Material: Aluminum Alloy Size: 30cm/11.8" Shape: Tri Quantity: 1 Pc Note: Please allow 1-3mm error due to manual measurement. Please make sure you do not mind before you bid due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!