These red antenna-like pieces have four flanges at the base. The base does NOT fit on top of a stud, but rather it will fit the underside/bottom side of brick. The two pieces can also be connected to each other to extend the length and fit in lego people's hands.
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.