Features: Safety ruler with clear scale, not easy to wear and damage. Suitable for length measurement, straight line cutting, home use, DIY production, and so on. Protruding protective plate can effectively avoid injury caused by accidental jump of the cutter during cutting. Ensure a steady cutting experience with the cutting ruler, designed with anti-slip mat at the bottom. The draw line anti-seepage ink structure prevents ink penetration during line marking, ensuring a mess- working environment. Specifications: Component: Aluminum alloy Type: 3 Kinds Optional Size: about 21x3.4cm/8.27x1.34'' Size: about 31x3.4cm/12.2x1.34'' Size: about 46x3.4cm/18.11x1.34'' Package Includes: 1 Pc Safety Ruler note: Please allow 1-3cm errors due to manual measurement. Due to the difference betweeen different monitors,the picture may not reflect the actual color of the item.