General description High quality new material, well made, and well matched to the old equipment. Clean accessories keep your home robot running at its best. The filter filters fine dust to prevent dust, pollen, and other allergens from entering the air you breathe. The contents of the accessories are easily removed and replaced as part of routine maintenance. To achieve the best cleaning filter effect, the cleaning accessories should be replaced every 2-3 months depending on the frequency of use. Technical specifications Color: as shown Material: plastic + cloth Package Contents: 2 x Main Brush 4 x Mop Cloth 4 x Hepa Filters 6 x Side Brushes 1 x Main Brush Cover 2 x Mop Holder Measurement allowed error: +/- 1-3 cm