1.Multi-function: single ladder,Website:http://www.ladderkingdom.com, double ladder, stairway ladder 2.One by one telescopic mechanism 3.Smart size, light weightModel Number: 999-019-5+2Certification: EN131Material: AluminiumWeight limit: 150 kg (23.5 stone/330 lbs)Opened Size: 2M(6.56Ft) + 1.42M(4.66Ft)Closed size: 72*46*4.6cmA type height: 1.36 m(4.46Ft)Steps: 12Rung distance: 29.5 cm(11.61")Cushion thickness: 0.50cmNet Weight: 11.5 kg ( 25.35 lbs)Gross Weight: 13 kg ( 28.66 lbs)Package Style: Double corregated brown boxPlastic bagPackage Size: 74x15x48cm/1pcContainer Volume (20'/40'/40'HQ): 510/1075/1264 pcs