What is this part?

[Johncmng]

I found it near the passenger side.

 

[JAXJeremy]

not sure that it's part of your 4R..looks more to me like it fell off a piece of packaging..

 

[97BlackAckCL]

Looks 3D Printed to me

 

[rushrunner]

That looks like it fell off a Gefilter.

 

[Arnezie]

Kids opened a toy in a theft resistant package it looks like to me.

 

[-E5J-]

Kids opened a toy in a theft resistant package it looks like to me.

^^^This... I see these frequently.