The filter can effectively filter fine particles such as dust in the air, significantly extending the service life of the robot vacuum cleaner. High-quality materials, excellent workmanship, durable, highly matched with the device. Cleaning accessories keep your home robot at its best performance. The accessories can be easily removed and replaced as part of daily maintenance. It can also reduce the penetration of dust, pollen and other allergens into the air you breathe. For optimal cleaning and filtering effects, the cleaning accessories should be replaced every 2-3 months depending on the frequency of use. Colour:As Shown Material:plastic Package Contents: 16 * Filter 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.