Feature:1. Multi-function triangular ruler and protractor helps to improve your work efficiency2. Clear laser scale on the surface of the ruler body, wear-resistant, non-fading, and possess long service life3. Each angle is polished by a special process, smooth, not hurting the side, and beautiful4. A conversion table is attached to the ruler surface, making measurement and reading more convenient and quicker5. Metric and British double-sided scale, more convenient. Aluminum alloy material have good strength and corrosion resistanceSpecification:Item Type: Triangular Angle RulerMaterial: Aluminum alloyColor: BlueRuler Thickness: Approx. 4mm / 0.2inProduct Size: Approx. 305 x 305 x 430mm / 12 x 12 x 16.9in.Package List:1 x Triangular Angle Ruler