Used to reach up high!
One ladder is 2m long and can be easily slid into the second and third one.
Be careful, obviously! Some H&S advise:
Grab another person to hold the ladder and make sure the surface you place it on is level & solid. Ensure there is at least a four-rung overlap on each extension section and the top of the ladder extends at least on metre above its (equally solid & level) landing point.
