1. Brand new, high-quality materials, -made, durable, and highly matched with the original equipment. 2. Clean accessories keep your home robot at . Accessory contents are removed and replaced as part of routine maintenance. Also reduces dust, pollen and other allergens from seeping into the air you . 3. In order to achieve the best cleaning and filtering effect, the cleaning accessories should be replaced 2-3 months according to the frequency of use. 4.HEPA filter can greatly air quality and reduce particle size by up to 99.97%. Helps remove household dust, pet dander, etc. 5. Say goodbye to odors, -filters can help reduce unpleasant odors from pets, smoke, cooking fumes and household products and chemicals. : plastic Color as shown Package Contents: 4 x Front filter 4 x Post filter 1 x Cleaning brush 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.