1. It can be easily removed and replaced as part of routine maintenance 2. It is recommended to replace it every 2-3 months or according to your usage 3. Material: Microfiber cloth 4. Size: long roller brush 245mm, short 125mm 5. Weight: Roller brush set is about 234g 6. Compatibility: For Roborock A10 Dyad Pro For Roborock A10 PLUS For Roborock A10 Combo For Roborock A10 Ultar