Posted on FreeCycle … described as “Thing”, with description “I don’t know what this is !”
A two-handed pooper scooper?
~VOW
A quick google lens search tells me (in German, sorry) it’s a “Fahrradhalter”, meaning something to fasten or attach a bicycle with. (Maybe for a car?)
ETA: read a bit further on the link. It’s a fixture for hanging bikes on a wall.
Ah ! That looks like it, thanks EinsteinsHund !
Great, now I’ve got that song from Avenue Q stuck in my head.