HKM-803539 Roborock Compatible Rolling Brush for T4, T6, S50 Series and Millet 1S ModelsIntroducing the HKM 803539 Roborock Compatible Rolling Brush, expertly designed for the T4, T6, S50 Series, and Millet 1S models. This precision engineered rolling brush weighs approximately 49. 6g and measures about 192mm, making it a perfectly sized accessory for your robotic vacuum needs. The primary function of this rolling brush is to enhance the cleaning efficiency of your sweeper. As the sweeper operates, the roller brush adjusts and rotates to