upain Metal Scale Ruler Architectural Triangular Ruler 12inch / 30cm Aluminum Scale Ruler Metric 1:100 1:200 1:250 1:300 1:400 1:500 for Architects Engineers Students Solid Aluminium Ruler Black

SpecificationName: Scale RulerSize: 30cmColor: BlackScale: 1:100, 1:200, 1:250, 1:300, 1:400, 1:500Package1 x Scale Ruler

【Premium Quality】Triangle scale ruler is made of anodized aluminum alloy, solid and sturdy, long service life.

【6 Metric Scale Ruler】Includes 6 commonly used scales: 1:100, 1:200, 1:250, 1:300, 1:400, 1:500.

【Length】30cm Scale Ruler, widely used in all aspects.

【Clear Scales】All numbers and measurement markings on drafting scale rulers are clear and readable, scale numbers and markings are not easy wearing off or fading away.

【Widely Application】Black aluminum triangle ruler ideal for architects, engineers, draftsmen and students.