QUALITY MATERIAL: Constructed with durable and sturdy lightweight aluminum alloy metal.SAFETY: Scientific design on extension and lock mechanism with thumb buttons to click smoothly and effortlessly. Operate with ease without worrying about hurting fingers during retraction.COMPACT STORAGE: Fully extended height is 5.7m(18.7 feet).Height after retraction is ¼ of fully extended form. effortlessly stored in car trunk and other limited spaces.HIGHLY ADJUSTABLE: Every locking section is independent of one another, therefore can be adjusted to preferential heights for different tasks.CLOSE OPERATION: You need retract it from top down, rung by rung.Press the black button on the edge of rung,both sides retract at the same time.(NOTE:Do not place any parts of your body,including hands and fingers,between the rung when you closing the ladder.)How to useHow magic ladder it is?Let's just have a look of below 12 kinds of shapes it can be.Multipurpose ladder is super good helper of our life.It is easy handle,just read after the manual then you will handle it well.It is also lightweight,if you want to carry it from one place to another place,it is also very easy.What a super worthy ladder!