General description 17 Spare Parts Kit for Roborock S50 S51 S55 S5 S6 - Accessories for Xiaomi MI Mijia Robot Vacuum Cleaner. This comprehensive kit includes essential components designed to enhance the performance and longevity of your robotic vacuum cleaner. Technical specifications Includes 17 pieces 3 HEPA filters 3 side brushes with screws 2 main brushes 2 mops 6 water tank drip filters 1 cleaning tool Usage To maximize cleaning performance, it is recommended to clean the parts twice a week and replace accessories every 8 - 10 weeks.