STABILO + S professional extension ladder, step-rung combination, 2 x 12 steps/rungs. Supplied = assembled. Number of steps = 2x12 pcs. Access type = steps. Length = 3550 mm. Material of treads = aluminium. Step depth = 80 mm. Feature = height adjustable. Weight = 19.9 kg. Width = 430 mm. Working height = 6700 mm. Frame material = aluminium. Cross beam width = 970 mm. Rung height = 970 mm. Max. load = 150 kg. Standing height = 4700 mm. Rail width = 25 mm. Rungs material = aluminium. Rung depth = 30 mm. Conforms to = DIN EN 131. Extended length = 6050 mm. Retracted length = 3550 mm. Compliant with TRBS 2121-2 - innovative step-rung combination. Versatile - both ladder sections can be used separately as lean to ladders. Convenient - blue, wide safety rung for safe passage from rungs to steps. The sturdy, two part professional extension ladder with step/rung combination for use in compliance with TRBS 2121-2. The new, innovative step/rung combination in one ladder allows it to be used as