Can someone please help me identify this antenna/rod part? It attaches to the bottom of a brick
These bars are not referenced as Lego bricks by BrickLink, neither by Brickset.


The complete list of existing bars is available on the BrickLink
catalogue for example;
Brickset proposes a list of all Signs, Flags, and Poles since the last 27 years and that bar is not included.


Therefore I believe these particular bars are not from Lego.