Compatibility: The cleaning brush is specially designed for Roborock S7 MaxV Ultra, S7 Pro Ultra, S8 Pro Ultra, G10, and G10S vacuum cleaners. These are high-quality non-original accessories that can be replaced quickly and easily. High Quality: The YushengTai self-cleaning roller brush is made of high-quality soft bristles, which are durable and wear-resistant and will not damage the floor. It is an excellent alternative to the Roborock brush and ensures that your device does its job well. Efficient Cleaning: The maintenance brush rotates at up to 500 rpm to clean the mop thoroughly and effectively. Thanks to the high-density flocking of up to 50,000 bristles, the contact area with the mop is greatly increased and the cleaning rate is up to 95%. Self-cleaning Design: After installation, the detachable cleaning roller brush can clean the dirt attached to the mop itself and easily direct the dirty water in the base to the water outlet so that it can be pumped into the dirty water tank.