Rung single ladder, width 350 mm, 8 rungs. It features a 4-fold flanged rung/stile connection and nivello® ladder shoes with patented 2-axis tilt technology. The aluminum rung feeder ladder consists of sturdy rectangular tube stiles and 30 x 30 mm square rungs fluted on both sides. The rung spacing is 280 mm. Single ladders over 3.0 m may only be used without a crossbar if they are used exclusively for their intended purpose, such as being permanently installed, fitted with hooks, or fastened with a belt.