Aluminum construction,Website:http://www.ladderkingdom.com, strong and durable;Lightweight and portable for carry;Extend and close step by step, easy to operate and use;Compact to small size, convenient to storage in small space;Europe safety standard, safety use and long period warranty.Model Number: 999-019-7+2Certification: EN131Material: AluminiumWeight limit: 150 kg (23.5 stone/330 lbs)Opened Size: 2.6M(8.53Ft)+ 2M(6.56Ft)Closed size: 78.3*46*14.6cmA type height: 1.88 m(6.17Ft)Steps:16Rung distance: 29.5 cm(11.61")Cushion thickness: 0.50cmNet Weight: 14.5 kg (31.97 lbs)Gross Weight: 16 kg ( 35.27 lbs)Package Style: Double corregated brown boxPackage Size: 80.3x15x48cm/1pcContainer Volume (20'/40'/40'HQ): 465/982/1155 pcs