This Louisville 24 ft aluminum extension ladder has a 225 lb load capacity, rated ANSI type II. It is equipped with the maxlock rung lock, custom engineered from a patented, advanced molecular polymer, maxlock is the strongest, toughest, lightest rung lock ever made. This ladder also includes the patented progrip slip-resistant tread integrated onto the ladder caps to protect the work surface from damage. Quicklatch runglock system that provides a simple, intuitive method of securing the fly and base sections of the ladder when extended. This ladder also features outside slide guides, D-shape rungs fully serrated for a slip-resistant surface, rope and pulley, modified I-beam for a more stable connection and to prevent twisting and swivel safety shoes to be used as tread down or in-spike position.