6 years professional seller 100% Quality Guaranteed Clean brushes keep your home robot operating at peak performance. Side brushes are easy to remove and replace as part of routine maintenance. Filters maintain cleaning performance while reducing infiltration of dust, pollen and other allergens into the air you breathe. For best results, filters should be replaced every 2 - 3 months. Compatible with model: Item For xiaomi Robot STYJ02YM Mi Mop Pro Conga 3490 Viomi V2 PRO V3 SE V-RVCLM21B 3C B106CN contact us 1. We have always been trying to provide the best service and reliable products for every customer, however, accident may happen sometimes, please contact us to resolve any issue before leaving a negative feedback. 2. Please contact us by Ask a question shipping 1.It usually takes approximately 15-50 business days to all over the world. 2.Tracking Number will be provided return We will refund you if you return the items within 15 days of your receipt of the items for any reason. However, the buyer should make sure that the items returned are in their original conditions. If the items are damaged or lost when they are returned, the buyer will be responsible for such damage or loss, and we will not give the buyer a full refund. The buyer should try to file a claim with the logistic company to recover the cost of damage or loss Feedback 1.Your satisfaction and positive feedback is very important to us. Please leave positive feedback and 5 stars if you are satisfied with our items and services. 2.If you have any problems with our items or services, please feel free to contact us first before you leave negative feedback. We will do our best to solve any problems and provide you with the best customer services