1:100% Made of high-quality materials, environmental friendly materials, soft and durable to use. 2:All accessories are . For the health of you and your family, and to take good care of your robot, it is recommended to choose high-quality products and replace the accessories regularly to ensure the cleaning effect. 3:The parts have a longer life cycle and better cleaning effect, which protects the robot from excessive wear and reduces the service life. 4:The slow-release silver ion module will continuously release silver ions into the water, and the antibacterial rate is as high as 99.9%1. As the cleaning progresses, the silver ions will continue to be transferred to the ground and the sewage tank, making the whole house cleaning, water storage, mop washing and sewage recycling process more at ease. 5:Highly equipped with sterilizing silver ions, effectively filtering dust and sterilizing, effectively reducing dust microorganisms, suitable for sensitive people Model Number: For Roborock S8 MaxV Ultra For Roborock G20s For Roborock G10s For Roborock Q Revo For Roborock P10s Colour:Light Blue Material:ABS Package Contents: 4 x Silver Ion Module