The D1120-2 aluminum 20 ft extension ladder is lightweight yet has a duty rating of 200 lb. The TRACTION-TRED® D-rungs are slip resistant. Spring-loaded locks operate smoothly for easy operation. Pivoting shoes with slip-resistant foot pads. Mar-resistant end caps help protect the surface the ladder is leaning against. Exclusive ALFLO® rung joint means TWIST-PROOF® performance every time.