Model: WT-3.2+3.2M Material: aluminum Thickness of aluminum: 1.5mm Open size: 3220x475x84mm Folding size: 808x475x84mm Hight between steps: 295mm Step number: 11 Top step to ground: 3220mm Loading capacity: 150kg Packing: 1pcs/carton Carton size: 525x205x835 mm G.W/N.W: 19.7/18.6 kg Container: 20FC/40HQ=310/700pcs