Feature 11. Compatibility: This rolling brush is compatible for Roborock S7 compatible fo Roborock S7+ compatible for Roborock S7 MaxV compatible for S7 MaxV Ultra compatible for Roborock T7S T7S Plus robot vacuum cleaner. 22. Easy to Replace: Snaps into place for quick and easy daily replacement. Easy to change main brush without tools. 33. Routine Maintenance: The brush roller is made of environmentally friendly materials, it is recommended to replace the multi-faceted brush roller every 3 months to improve suction and performance and prolong the service life of the sweeping robot. 44. Reusable: Easy to clean hair and debris from brush. Rubber brushes are made of high-quality, durable materials that can be washed and reused. (please dry completely before installation)Material: SiliconeColor: pink, purple, blue, yellowSuitable for: beginners, makeup expertsProduct size: about 11.7*5.9*1.2cmPackage ListPacking List 1:1*Main BrushNoteDue to the lighting effects and shooting angles, there is color difference in the product, please understand.Due to manual measurement, there is a tolerance in the product size.