Usage Guideline1: Please unfold the ladder from the top upwards (please make sure that you can hear a "click" sound when each part is unfolded, indicating that its locked) 2: Place the ladder against a wall to ensure it is stable.Retraction steps1: Hold the upper section or both treads of the ladder with one hand 2: Push the left and right latches with the other hand, and then control the ladder to descend slowly (Note: please retrieve the ladder from the bottom section upwards in order) Premium Aluminium Telescoping LadderFEETE telescopic ladder is made of premium aluminum material. High quality nylon fiber reinforced plastic parts ensure that the extension ladder has sufficient load capacity and stability. The retractable ladder's 330 lbs maximum weight capacity can meet most of the use conditions.