Saw this on the bus, any idea what this is?

by FollowingPlenty9567

6 comments
  1. That’s too block the buses wheels when stopped, in case of emergency.

    It’s the first time I see something like that made of tubes but it’s actually smart, since I assume it works just as well but it makes it way lighter (it’s going to spend 99.9% of it’s time unused, as pictured)

  2. It’s a wheel block used to keep the bus from rolling in case of a breakdown.

  3. It’s a contraption to set off 1. August firework rockets inside the Postbus.

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