Garbage & Dust Collection: The quick rotation sucks the garbage into the suction port, and in combination with the suction force, completes the closed cycle "sweeping - sweeping - suction", improving cleaning efficiency. Anti-entanglement of hair: adopts spiral flow guide and conical structure to reduce the entanglement of pet hair with long hair. Intelligent main brush lifting: it lifts when encountering carpets, thresholds or liquids, avoiding wet, snagging and secondary pollution, and improving obstacle crossing and scene adaptation skills. Quiet and Quiet Operation: Soft rubber bottom contact, precise dynamic balance and low resistance structure design reduce operating noise and improve user experience. Main Central Roller Brush for Robot Cleaner, Compatible with Lefant U180 M1 M2 Pro, Compatible with OKP K8 Appliance Parts