Linear scale with long-distance scale (E-division) for use with an optical level, back with metric scale. High-quality, specially selected beech wood for optimal break resistance and elasticity - PEFC certification guarantees sustainable forest management. Integrated angle scheme for quick creation and transfer of commonly used angles (15°, 30°, 45°, 60°, 75°, 90°, 105°, and 120°). Unfolding function - when extended, the segments provide a continuous straight edge. Embedded, hardened sheet steel joints with integrated steel spring for durability and precise locking. Durable, weather-resistant lacquer finish to protect the wooden plates and the scale. Large numbers for better readability. Red tens for quick orientation. Black graduations with clear and distinct print quality. cm/mm graduation on both sides of the scale. With CE and metrology markings as well as EU type examination certificate. Accuracy class III.