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. 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. 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. Expandable Features: This leveling rod has 3 adjustable telescopic sections, extending up to 9ft/2.74m. The rectangular shape ensures ease of operation, aligning perfectly parallel to surfaces. When not in use, it can be collapsed for compact storage. Precision Scale: Utilizes dual-sided scales, with the front marked in Feet/8ths and the back in feet/inches (The back measures height from top to bottom. Flip the ruler before use), featuring weather-resistant, corrosion-resistant scales and red markings, ensuring maximum visibility for convenient and clear measurement readings.