What is this called and where to find a replacement?

[VeroyThePropertyAgent]

Hey bros! I realized that this cover on my E250 is gone. I asked around and found out that this is a part that's common to be stolen ... anyone knows where I can get it replaced and how much does it cost? My letterings on my rear bumper (E250) also kena stolen. Sigh why.... thank you in advance for your help. 

[petetherock]

Tow Hooker Cover?

https://www.ebay.com.au/p/front-bumper-tow-hook-cover-cap-for-mercedes-benz-e-class-w212-e250-2128850126/1081152745?_trksid=p2047675.l2644

[jtang]

That's the headlight washer cover. It's on both sides. 

Try Benzline or Goldenlink for parts.