The mop cloth has strong and long-lasting cleaning power, which can easily respond to various stains such as footprints on the floor, juice residue, and oil stains. For best results, spare parts should be replaced every 1 - 3 months. it's easy to remove dirt, dust, and trash in corners and edges from the accessories, especially and pet's hair. It can be easy to remove and replace as part of routine maintenance. Replacement parts for M7 PRO / S31/ T1 Pro robotic vacuum cleaner.