The D5924-2 24 ft fiberglass extension ladders feature a rounded rail for improved ergonomics while climbing and carrying. The TRACTION-TRED? D-rungs are slip resistant and the side rails are interlocking. The rail shields protect the bottom of the rail and the SHU-LOK? shoe pivots easily for use on hard or penetrable surfaces. The exclusive ALFLO? rung joint assures TWIST-PROOF? performance.