General description New, high-quality materials are used in the For Minien MX90 Pro Main Side Brush, Hepa Filter, Mop Cloth, and Dust Bag. These accessories are well-made and highly compatible with the equipment, enabling your home robot to maintain optimal performance while effectively reducing dust, pollen, and other allergens from the air. Technical specifications Color: As shown Material: Plastic Package Contents: 1 x Main brush, 4 x Side brush, 4 x Filter, 4 x Mop cloth, 4 x Dust bag Measurement allowed error: +/- 1-3 cm Usage To achieve the best cleaning and filtration effect, it is recommended to replace the cleaning accessories every 2-3 months, depending on the frequency of use. The filter's function is to filter dust, dirt, and other impurities inhaled by the sweeping robot, preventing them from entering the robot's motors and extending its lifespan. Other information The real color of the item may vary slightly from the pictures shown on the website due to factors such as