General description High-quality, brand new materials ensure that these accessories for the Xiaomi Mijia Wash Free Mop Pro are well made, durable, and perfectly matched to the original equipment. The clean brushes help maintain your home robot's performance, while the filter effectively reduces the entry of dust, pollen, and other allergens into the air. Technical specifications Material: Plastic Package Contents: 4 x filter, 4 x mop Measurement allowed error: +/- 1-3 cm Usage For optimal cleaning and filtering performance, it is recommended to replace the filter every 2-3 months, depending on usage frequency. The accessories are easy to disassemble and replace as part of routine maintenance.