HEPA filter: 3-6 months replacement is recommended. Effective HEPA Filter for Robotic Vacuum CleanerUnique design, easy-to-clean dust container durable to use. Side brush: practical side brushes for the robot vacuum cleaner. Nylon brush, it will not scratch the floor and furnitureUnique design, easy to pick up hair ABS material, durable to use. Main brush: 6-12 months replacement is recommended. Practical roller brush for robotic vacuum cleanerFloating structure, thorough cleaning. Color as shownMaterial: PlasticPackage Contents:2 x Main Brushes4 x Side Brushes4 x Filters4 x Mops2 x Cleaning BrushesOnly the above package content, other products are not included. Note: Light reflection and different displays may cause the item's color to be a little different from the real thing. Measurement error is +/- 1-3cm