It can be easily removed and replaced as part of routine maintenance. The mop has a long-lasting cleaning power that can easily react to various stains such as footprints on the floor, juice residue and oil stains. For best results replacement parts should be replaced every 1-3 months. It is easy to remove dirt, and rubbish from corners and edges from accessories, especially human hair and pet hair. Replacement parts for the Mi Robot Vacuum Mop 2 Ultra STYTJ05ZHM robot vacuum cleaner.