1.--Multi Purpose--Fully Fully Extended -Great Rretractable, or Telescopic Ladder that is versatile and portable ladder for both indoor, outdoor, office, warehouse, bookship ,Library use. 
2.--Space-saving Storage--Stashed away in garage, bed bottom, tailbox, a closet or similarly small storage space without taking too much space at all. 
3.--Lightweight--The ladder is made of Aluminum, build is sturdy. Easy to carry, can carry it from outdoor to indor. 
4.--Easy Operate--Extension and retraction is easy to operate, for extension, just pull a section up, hear the "click" sound, confirm both left/right locks are in place; for retraction, it's a one-hand process, unlock one step and step, it will retract, do not put your hand in the Step spacing, when it retracts and may clip your hand. 
5.--Security Featureses-- This telescopic ladder durable Aluminium design, industrial-grade height-locking latches and solid anti-slip rubber-tipped feet on the bottom of ladder step.