The product is made of high-strength, -friendly materials to optimal performance and a healthier . To achieve the best cleaning and filtering effect, cleaning accessories should be replaced 2-3 months according to the frequency of use. Easy to install and remove without extra effort and time. It can be removed and replaced as part of normal maintenance. Cleaning accessories keep your home robot performing at best. Product Category: Sweeper Accessories Applicable models: For X1 Function: Cleaning Colour:Photo Color Material:plastic Package Contents: 2 x 1 x Hepa 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.