Did you try to take the metal ring out?

(Not my pic, found it on the web, though, I took mine off to look inside the armature

)
I own the E4's and I have extra ear nozzles that came inside the original package. if you can't do that, then they are 100% fake. Personally, I think yours are fake anyways.. they do look too glossy and the head of the earphone itself is to "fat".