For Roborock Dyad U10 Xiaomi Wd1s1a Floor Roller Brush Hepa Filter Made of material, more durable. 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. The roller brush has a powerful and long-lasting cleaning power, which can easily deal with various stains such as footprints on the floor, juice residue and oil stains. As part of normal maintenance, it can be easily removed and replaced. It is recommended to replace the spare parts every 3 to 6 months. depending on the frequency of use to keep the machine running at its best performance. Color: picture color Material: plastic and fiber Package Contents: 2 x long roller brush 4 x short roller brush 4 x filter 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 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.