Application It is suitable for households, warehouses, shops, supermarkets, libraries, etc. It can be used to reach high places for picking up or unloading goods, replacing light bulbs, cleaning windows, etc. Specifications Color: White/Black Material: Carbon Steel Process: Spray Coating Style: Modern Assembly Required: Yes Mounting Type: Floor Standing Number of Wheels: 2 Number of Steps: 4 Total Load-bearing Capacity: 150kg/330.69lbs Product Size: 55*76*139cm/21.65*29.92*54.72in Step Width: 17.5cm/6.89in, 13cm/5.12in, 20cm/7.87in Package Size: 121*80*10.5cm/47.64*31.5*4.13in Gross Weight: 21kg/46.3lbs Net Weight: 18.25kg/40.23lbs Package Included 1* 4-step Stair 1* English Installation Diagram 2* Wheels All Accessories for Assembly.