General description These 2 pieces of Silver Ion Modules are designed specifically for the Freo X Ultra/J4 and J4 Lite Robot Vacuum Cleaners. They are made from high-quality, environmentally friendly materials, ensuring a soft and effective cleaning experience. Regular replacement of these accessories is recommended to maintain optimal cleaning performance and prolong the life of your robot vacuum. Technical specifications Material: Plastic Color: As shown Measurement allowed error: +/- 1-3 cm Compatibility and accessories Compatible with J4 / J4 Lite Robot Vacuum Cleaner Package Contents: 2 x Silver Ion Module Usage The slow-release silver ion module continuously releases silver ions into the water, achieving a release rate of up to 99.9%. As the cleaning progresses, these silver ions are transferred to the ground and the sewage tank, enhancing the cleaning process throughout your home. Other information All accessories are new. Slight color differences may occur due to light