Just a lid. Nothing special.
I find that there is quite a bit of dust accumulation in the cleaning station over time. At the end of the day, that dust (and all the hair from the shaving head that you didn’t brush away in advance) is mixed with the cleaning detergent and cycled through your shaver.
I have a Series 9 Pro shaver. I don't know if this lid will fit cleaning stations from other models.
Enjoy!
I‘d appreciate a “like” if you do and look forward to your makes!