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, while also reducing the infiltration of dust, pollen, and other allergens into 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 Package Contents: 2 x Main Brush 1 x Cleaning Brush 1 x Main Brush Cover 3 x HEPA Filters 6 x Side Brushes Measurement allowed error: +/- 1-3 cm