Features: 1) Material:Aluminum Alloy, PVC,Steel 2) Max. load: 150kg 3) Weight(G.M /N.M): 11.5kg /11.3kg 4) Max. extended length: 3.7m 5) Closeup size: 38 x 28 x 100cm 6) Hgt Betn Two Steps: 90mm 7) Step: twelve Outer packing: Size: 102 x 29 x 39cm Conveyance: Qty/20' FCL: 255pcs Qty/40' FCL: 545pcs Qty/40' HQ: 639pcs