RELIABLE & SAFEThe BRYNER folding ladder meets or exceeds all SGS EN131 standards. Its made of aviation grade aluminium with double thickness tubed corners designed to enhance safety and stability, giving this ladder a maximum weight load of 330 lbs. The external aluminum thickness up to 2mm, thickened aluminum ladder is your safe defender. 7 IN 1 MULTI-PURPOSE LADDERMulti-position ladder easily converts to an A-frame Ladder, Extension Ladder, 90° Ladder, Wall Ladder and Scaffold to meet your different height requirements and working needs.When using the scaffolding function, the support kit rack must be installed. The ladder can be extended to 19.6ft and easily reach up the roof. Its only 4.9ft tall when fully folded, convenient to store and carry.