Features: Precision-and Safety: Our 20cm Aluminum-Alloy Protective Ruler is designed for high-precision measurements while ensuring your safety with its anti-slip and anti-cut features. Durable and Reliable: Made-of thickened steel and aluminum-alloy, this ruler is built-to last and-withstand heavy use without bending or breaking. Suitable for Everyone: Whether you're a professional graphic-designer, architect, or DIY-enthusiast, our ruler is perfect for all kinds of precision-measurements. Versatile Usage: From drawing and layout work to measuring angles and lines, this ruler is ideal-for a wide range-of applications both in the-office and-at home. Get your hands-on our Protective Ruler today and-experience the-ultimate combination of-precision, durability, and safety in your everyday work! Specifications: Material:Aluminium-Alloy Size:Approx.20cm/7.87inch Size:Approx.30cm/11.81inch Size:Approx.60cm/23.62inch Size:Approx.80cm/31.49inch Package Includes: 1x Straight Ruler note: ①.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. ②.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.