Product description: Product Name: Accessories for Xiaomi and Roborock Sweeping Robots Product size: main brush-195mm; filter screen 165*52mm; bristle part of side brush-65mm; rag 300*115mm Product weight: main brush 70g; filter 65g/box; side brush 10g; water tank filter element 12g/box; rag 10g Applicable models: Xiaomi 1st generation/1S series, Stone S5 Max/S6/T6/S50/S55 series Product advantages: The detachable main brush is more convenient to clean than the ordinary main brush. The two ends of the main brush are detachable. When used with a cleaning comb, the hair is easier to clean. Suggestion for useAccording to your family situation, it is recommended that you replace the parts every 3-6 months. Regular replacement of parts will help the machine to run at the highest efficiency.