Solid construction. Unlike rulers with printed graduations, this engineer's ruler is made of solid anodized aluminum with 100% laser-etched markings for accurate measurements. Quality design with chamfered edges. The triangular ruler features beveled edges for safety and smooth handling. Made from high-quality anodized aluminum, it is lightweight, durable, and ideal for precision work. Suitable for a variety of projects. Multi-scale metric ruler. Includes six commonly used scales: 1:20, 1:25, 1:50, 1:75, 1:100, and 1:125. Dual-direction graduations allow easy reading from left to right or right to left, improving usability and efficiency. Versatile and portable. Measuring 30 cm in length and weighing 100 g, this ruler is easy to carry and store. A practical measuring tool for architects, draftsmen, engineers, and students. <b>Ruler Features:</b> Precise laser-etched graduations. Chamfered edges for safety. Rust-resistant anodized finish. Three concave sides with six different scales. Compact and lightweight design for easy handling. Made from high-quality solid aluminum for long-lasting durability. <b>Specifications:</b> Material: Anodized aluminum Length: Approximately 30 cm (12 inches) Scales: 1:20, 1:25, 1:50, 1:75, 1:100, 1:125 Finish: Sleek black anodized Note: Measurements are manually taken; please allow 1–3 cm variation. Color may vary slightly due to lighting and screen display differences. Actual product may differ slightly from image.