General description High quality brand new material, well made, and well matched to the old equipment. Clean accessories keep your home robot running at its best. 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. The filter can maintain the cleaning performance of the sweeper while reducing the penetration of dust, pollen, and other allergens into the air you breathe. Technical specifications Color: white Material: Non-woven fabric Package Contents: 18 x Dust Bag Measurement allowed error: +/- 1-3 cm