Specifications Telescopic ladder 3.8m Max. workload 150kg Closed height only 0.81m Extends and locks rung by rung Light,portable,easy store telescopic ladder Material :aluminum Thickness of aluminum :1.5mm Open size: 381x49x9.5cm Hight between steps: 27.5cm Step number :13 Top step to ground :381cm Loading capacity :150kg Packing :1pcs/carton Carton size :91.5x53.5x13.5cm G.W/carton: 12kg/carton Container: 20FC/40HQ=480/1105pcs (with foam) 20FC/40HQ=650/1540pcs (without foam) EN131 certificate