The 4244K 44' Aluminum Extension Ladder has a duty rating of 300 pounds and features the exclusive three-piece rung-to-rail connection for twist-proof performance every time. The end caps are mar-resistant and notched for easy separation of sections. Both the base and the fly sections can be used independently. Internal guides increase the ease of operation when raising and lowering. The feet are heavy duty, self aligning, and free swinging for hard or penetrable surfaces. Rugged spring-loaded locks operate smoothly, and the D-rungs are slip resistant, completing this versatile ladder.