1.Beautiful and creative design, light in weight, top grade, easy to operate, be convenient to carry,be wildly used in home, office and so on 2.Dealing with positive pole oxidation on aluminium surface make rust-proof ability of product more durable; 3.Comfortable,non-slip cellular Foam handle. 4. Folding can take up little room when you don’t use it. 5.Two wheels can fold directly, more convenient and safety; 6.Steps and Loading's plate is more breadth,carry more heavy; 7.Multi-Function,Not only can make ladder for usage,also can use to hand truck; 8.It has National patent,and make foreign patent pending; 9.It have pass make ANSI testing