The parts and accessories are made from environmentally friendly materials and are virtually maintenance-free. To ensure optimal performance of your robot, it is recommended to replace the parts every 2-3 months. Easy to install and replace on your robot vacuum cleaner. The filter can be washed with clean water, restoring it to like-new condition in minutes. Double filtration system with mesh screen and filter paper for higher efficiency, cleaner air, and extended service life. Color: As shown Material: Plastic Package Contents: 1 x Filter set Note: Only the items listed above are included; other products are not included. Light reflection and differences in display settings may cause slight variations in color between the product image and the actual item. Measurement error allowance is +/- 1-3 cm.