High-quality brand new materials, well-made, durable, and perfectly matched with the equipment. Clean brushes keep your home robot at its best. As part of routine maintenance, the accessories are easy to disassemble and replace. Keep the robot clean and reduce the penetration of dust, pollen, and other allergens into the air you breathe. In order to achieve the best cleaning and filtering effect, the filter should be replaced every 2-3 months depending on the frequency of use. Color: as shown Material: plastic Package Contents: 2 x Rolling Brush Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.