Made from premium materials for increased durability and longevity, these filter sponges are specifically designed to fit the J1, J2 and J3 models of the Yunjing, ensuring a perfect fit and optimal functionality. Easy maintenance is key with these filter sponges; they can be quickly removed and replaced as part of regular maintenance, helping to maintain the efficiency of the device and extend its lifespan. These carefully designed filter sponges not only prevent clogging, but also ensure a healthier and cleaner living environment, thereby improving the performance of your cleaning robot. This set includes high-quality water tank filter sponges, a cost-effective solution to keep your robot vacuum running smoothly and efficiently. Designed to satisfy you, these accessories are an essential addition for anyone looking to optimize the functionality and hygiene of their home cleaning system. Colour: As Shown Material: Sponge Package Contents: 6 * Water tank filter sponge 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.