General description High-quality replacement accessories designed for the For 3890 Ultra/Vital Roller. These components are essential for maintaining optimal performance of your home robot, effectively reducing dust, pollen, and other allergens in the air. Technical specifications Material: Plastic Package Contents: 1 Main brush, 4 Side brushes, 4 Filters, 4 Mop cloths 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 usage frequency. The filter's function is to trap dust, dirt, and other impurities, preventing them from entering the robot's motors and extending its lifespan. Other information Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product.