The zarges telescopic industrial ladder is flexible and stable ideal for rapidly changing applications it acts as 3 ladders in one lean to trestle and staircase ladder only a few actions are needed to convert from one to the other the ladder allows rung by rung height adjustment in all versions and features high strength zarges quality flanged connection between rung and stile it has an easy to use automatic aluminium safety hinge and has safe height adjustment thanks to four handles of dieca