This “XPro2” eye cup does not fit properly, falls off if the camera brushes against clothing or his jarred in anyway. Even Super Glu does not keep it on. The only way to deal with the XPro2 eyecup issue is to send the camera to Fuji.
DO NOT BUY THIS PRODUCT
This model allows easy replacement of lost original rubber piece.
My only complaint is that it can be removed as easily as it can be installed, so even friction in a bag can detach it.