I purchased these bars in error from eBay - listing as they don’t fit my car (an X3 G01) I’m after some money back only. Description below from original seller. NB PLEASE make sure your X4 has roof rails - no rails = no fit. Please contact me for clarification if required.

Used on our X4 twice and stored indoors when not in use.

Enhance the functionality of your BMW X4 G02 with this genuine roof rail luggage carrier system. The roof bars are designed to provide a secure and stable base for various cargo carriers such as roof boxes, bike racks, and ski holders.

This roof rack is manufactured in the UK and compatible with BMW (Genuine OE) X4 G02 models and also lists F26 in the instruction booklet (not present but photo’d) The bundle includes 82712444244 bars, which are sold as a single unit. The item is easy to install and can be used straight away. Enjoy the convenience of carrying extra luggage without compromising the vehicle's interior space.