I got the vewib ones too and they're also a bit too thick makes closing doors a bit difficult.
Feels like the doors will pop open anytime there's so much pressure when you open them.
Theres a circlip on the lower end of the pin that you will need to push off to get the pin out : I put lots of effort into getting them into the door channels using a wooden pusher and the door shuts nicely
Also have the Vewib Ones and yes they are as fat as you like and make the door stand proud and look like Santa's waistcoat... took my doors off to fit them as get an arse on if I try and work where I can't get at things as I feel I want to.....