Precision Markings: Features dual-sided markings, with front markings in Feet/8ths and back markings in feet/inches (The back measures height from top to bottom. Flip the ruler before use), equipped with weather-resistant, corrosion-resistant scales and red indicators for maximum visibility, providing clear and precise measurements. Expandable Functionality: This leveling rod is equipped with 4 adjustable telescopic sections, extending up to 16ft/4.88m. Designed in a rectangular shape, it ensures ease of operation and alignment with surfaces, collapsing for compact storage when not in use. Built to Last: Made from 0.8mm thick anodized aluminum (6063-T5) with weather-resistant and corrosion-resistant ink markings that are durable and waterproof, suitable for tough job site conditions. User-friendly Design: Includes injection-molded section joints and high-strength locking buttons for stability, along with a bubble level for enhanced accuracy. Comes with a durable soft carry bag for convenient storage and transport. Wide Application: Lightweight, portable, and designed for both indoor and outdoor use, ideal for reading elevation changes on job sites and precision leveling with construction lasers and optical measurement tools.