The Xiaomi Robot Vacuum Mop 2 Pro/2 Lite Brush Cover is the battery cover which houses the central brush for the Xiaomi Robot Vacuum Mop 2 Pro/2 Lite. This cover protects the central brush and is required for usage. If your cover has broken or is not engaging properly then this main brush cover will solve the problem. It features a sturdy design for long-lasting use and is easy to install.