Filters maintain cleaning performance while reducing infiltration of dust, pollen, and other allergens into the air you breathe. Keep your home clean by changing filters frequently - once every month or two, depending on your usage. For best results, filters should be replaced every 2 to 3 months. Main Brush: Recommend replacing 6-12 months. Color: Blue, Black Material: Plastic Package Contents: 1 x Main Brush 1 x Plush Roller Brush 2 x Filter 2 x Side Brushes 1 x Cleaning Brush 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 +/- 1-3 cm.