Usage Tips:This spare parts is only suitable For Dreame S10 Series W10 Series S10/S10Pro/S10Plus/S10Pro Plus /W10/W10 Pro Robot Vacuum Cleaner. All accessories are brand and for-. 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. The parts have a longer life cycle and better cleaning effect, which protects the robot from excessive wear and reduces the service life. 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. 100% Made of high-quality materials, environmental friendly materials, soft and durable to use. Colour:As Shown Material:Plastic Package Contents: 4 * Silver Ion Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.