30cm Triangular Scale Ruler, Metal Ruler for Architects, 1:20, 1:25, 1:50, 1:75, 1:100, 1:150 (Copper)

【Laser Etched】The metal ruler are laser etched for accuracy. These markings will never fade or scratch off. Warm reminder: Due to different production batches and different viewing angles, the product will have slight color difference. 【All-in-one Scale】The scale ruler includes 6 scales: 1:20, 1:25, 1:50, 1:75, 1:100, 1:150, suitable for common needs. It can be easily measured from right to left or left to right. 【Safe Design】Ruler was designed with chamfered edges for your safety. So you don't need to worry about accidental scratches. 【Nice Quality】This triangular scale ruler 30 cm is made of anodized aluminum, sturdy and long-time use. It can accompany you to create better works. 【Professional Use】The scale ruler is extremely accurate, ideal for architects, engineers and professors., Manufacturer: SZCXDKJ