Often replace the filter to help make indoor air more fresh. Side Brush:it will not scratch the floor and furniture unique design, easy to collect the hair material, durable in use. Filter helps reduce household odors. Keep your home clean by changing the filters frequently - once every month or two, depending your usage. Colour: black Material: plastic Package Contents: 2 * Main brushes 2 * HEPA filters 6 * Side brushes Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.