So ..
Finding the right size is super easy! And they fit perfectly on my House of Marley Zion.
The sound I'm already used to, so it is no surprise that it sounds good :-)
Only the adapters are a little too short, a few millimeters longer and they would sit rock solid in the ear.
So all in all I do not regret buying
Now I'm just curious about how they can be cleaned and Vienna long they stay.
The packaging is OK. (ZündholzschachtelStyle)
The shipping was fast as expected.