Lightweight & Durable – Made of aluminum alloy steel, stronger and longer-lasting, with anti-rust protection. Anti-Rust & Stylish – Sleek black finish provides corrosion resistance and a premium look. 2.5mm Thick Ruler – Extra robust construction for enhanced durability and stability. Adjustable Aluminum Nut – Oxidation-treated for secure angle locking at any position. Laser-Calibrated Scale – Clear, precise markings for accurate measurements. Versatile Folding Design – Four-section ruler flexibly adapts to various shapes and angles. Multi-Material Template Tool – Ideal for tiles, wood, glass, drafting, and engineering tasks. Simple & Safe Operation – Just slide, shape, and tighten the screw for quick, secure use.