Accessories and Parts for Robotic Vacuum Cleaner Roborock S50 S51 S55 S5 S6 - Xiaomi MI Mijia. High Quality - Vacuum parts are designed for long life. Accessories are rigorously tested for compatibility and durability. Made of high strength and eco-friendly material. To maximize cleaning performance, clean the parts twice a week. And replace accessories every 8 - 10 weeks. Each package includes a set of 17 pieces: 3 HEPA filters; 3x side brushes with screws; 2x main brush; 2x mops; 6x water tank drip filters; 1x TOTAL SATISFACTION cleaning tool. Within 30 days if you are not satisfied, you can request the return free of charge.