This item is a set of measuring rulers, manufactured with premium stainless steel material, so that they can serve you long time. Premium material can ensure the rulers durability and practicability. <span>Double-sided scales to meet the needs of engineering, hardware, machinery, molds, etc. </span>Suitable for schools, offices, architects, engineers, crafts. Features - ColorSilver - Material: Stainless Steel - Ruler length: 15;20;30;40cm/5.9;7.8;11.8;15.7in - Premium material: Thickened stainless steel rulers, wear-resistant, not easy to break. - Double-sided scales design: Double-sided scales to meet the needs of engineering, hardware, machinery, molds, etc. - Lightweight design: Portable design, easy to carry and use, they can bring you great convenience. - Engraving process: Using premium engraving process, the scale is clear, professional and practical. - Multiple occasions: Suitable for all occasions such as schools, offices and buildings. Package list: 4 x Stainless Steel Rulers