Often replace the filter to help make indoor air more fresh Side Brush:it will not scratch the floor and furnitureUnique design, easy to collect the hair material, 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 + blue Material: plastic Package Contents: 2 x main brushes 1 x main brush cover 6 x HEPA filter 6 x side brushes 4 x Mop Cloths 1 x cleaning tool Only the above package content, other products are not included. Note: Light 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.