roborock Main Brush of Roborock S8/S8+/S8 Pro Ultra Robot Vacuum Cleaner

I purchased the Roborock Dual Main Brush Replacement with the understanding that they were genuine parts, expecting the same durability as the originals. Regrettably, the red brush's quality fell short of my expectations. Within a mere six weeks of installation, it exhibited significant wear — the edges of the "bristles" were torn and appeared far more degraded than the original brush that had been used for several months.It's puzzling because the black roller remains in good condition, suggesting an inconsistency in quality or perhaps a change in material formulation by Roborock. The possibility of having received a defective brush also crossed my mind. Whatever the case, the necessity to replace the red brush so soon is disappointing and inconvenient.As a result of this experience, I've already had to install another set, hoping for better endurance. My satisfaction with these replacements is quite low, and I'd hesitate to recommend them based on the current performance.