Smooth operation,Website:http://www.ladderkingdom.com, one time closeThis ladder is with our own patent design of "D"tubeAnti-pinch Finger ProtectorsManufactured to GS standards,and AS/NZS1892.1-1996 excluding clause 9.2.11Max working load 150kgExtends to 3.20mModel Number: AL-019-3.2ECertification: EN131Material: aluminiumWeight limit: 150 kg (23.5 stone/330 lbs)Opened Size: 3.2 m(10.5Ft)Closed size: 102 cm(40.16")Steps: 10Rung distance: 29.5 cm(11.61")Cushion thickness: 2.60cmNet Weight: 13.5 kg ( 29.76 lbs)Gross Weight: 14.6 kg ( 32.19 lbs)Package Style: Double corregated brown boxPlastic bagPackage Size: 49.5x105.5x9.5cm/1pcContainer Volume (20'/40'/40'HQ): 586/1174/1456 pcs