All accessories are brand new. 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 shortens the service life. The slow-release silver ion module continuously releases silver ions into the and the antibacterial rate reaches 99.9%1. As the cleaning progresses, the silver ions will continue to be transferred to the floor and the waste water tank, which will facilitate the process of cleaning the entire , storage of the , mopping and recycling of waste water. Made of high quality materials, environmentally friendly materials, soft and durable to use. Replacement parts only fit for robot vacuum cleaner for J4 / J4 Lite. Please note: color difference or difference in kind, does not affect the use, please do not worry, ! Material: plastic