Quiet but ... 1

Felling well thought by its gradual and silent descent.
By cons for mounting, do not rely on the note.
Do not trust in this product video on this amazon. There must be a video for all "Fix clip" systems.
This product no fasteners in stainless steel but plastic and comprises no external pressure buttons to release the flap.
I am also always ask me how I'm supposed to do to remove for cleaning. We struggled to make the system snaps, I dare not touch it.
Too bad it was really well thought out.