HXMJIED 2Pcs Architectural Scale Ruler, Black Aluminum Triangular Scale Ruler 30cm, Metal Ruler for Architects Metric 1:20, 1:25, 1:50, 1:75, 1:100, 1:125 and 1:100, 1:200, 1:250, 1:300, 1:400, 1:500

• [Precision Laser Etching] Our metal ruler undergoes laser etching for precise markings that will never fade or wear off, ensuring enduring accuracy for your measurements.
• [Versatile Scale] Featuring 12 scales, this dual-sided ruler includes measurements ranging from 1:20 to 1:500, catering to a wide array of common measurement needs. Its versatile design allows seamless measurement from both right to left and left to right.
• [Securety-Oriented Design] Crafted with chamfered edges, this ruler prioritizes securety, preventing accidental scratches and ensuring a secure grip for comfortable use.
• [Premium Craftsmanship] Constructed from anodized aluminum, this 30 cm triangular scale ruler guarantees durability and sturdiness, promising reliable performance throughout prolonged usage, aiding you in achieving superior results.
• [Precision for Professionals] Offering exceptional accuracy, this scale ruler is tailored for professionals such as architects, engineers, and educators, meeting their high standards for precision and reliability in measurements.

Scale Ruler 30cm, Metal Ruler for Architects The metal ruler is made of anodized aluminum, sturdy and long-time use. Designed with chamfered edges for your safety. The scale ruler was laser etched for accuracy. Each ruler includes 6 scales.