Rung rope ladder made of aluminium;Sturdy rectangular tube stiles;Ribbed square rungs 30 x 30 mm on both sides;4-fold fritted rung/stile connection;Convenient height adjustment from rung to rung thanks to two rope sets with plastic rope;Automatically acting drop-in hooks, middle and top section separately adjustable;Top ladder with wall rollers;Corrosion-resistant guide fittings with sliding guides;Rung spacing: 280 mm;Ladder width: 470 mm (without crossbar);Maximum load: 150 kg;Standard crossbar with non-slip ladder shoes in optimum width to the selected product for safe standing and climbing on single ladders over 3,0 m. The crossbar is supplied loose and is screwed twice to the lower end of the stile;Note: According to the standard, the attached extension ladder section cannot be separated from the ladder for lengths of over 3.0 m.