I got a set off Aliexpress for just over A$20 and they're pretty good. The rear ones look a bit longer than the ones shown above. Definitely help keep muck off the side of the car. The review on there with pics is my car.
https://www.aliexpress.com/item/3271828 ... 3aea7ST1kL
This is the Forum for all your Citroen Technical Questions, Problems or Advice.