Step shelf ladder, with wheels on top for round tubing rail system, 12 steps. Supplied = assembled. Number of steps = 12 pcs. Access type = steps. Length = 3200 mm. Material of treads = aluminium. Step depth = 80 mm. Feature = mobile. Weight = 12.3 kg. Width = 570 mm. Working height = 4100 mm. Frame material = aluminium. Max. load = 150 kg. Standing height = 2100 mm. Vertical hook-in height = 3300 mm. High stability due to high strength beaded step-rail connection. Safe ascent due to 80 mm deep, profiled steps. Space saving suspension when not in use. This step shelf ladder is the optimal supplement to every shelf system. In combination with a round tubing rail system (tubing diameter 30 mm) , this lean to ladder provides fast and safe access to shelves located at a height. 2 self locking braked castors (diameter 80 mm) ensure it is easy to move. The two component ladder feet provide a sturdy footing during use. The ladder inclination totals 21. When work is finished, the ladder can be