The edge brush is made of durable and long-lasting material, ensuring reliable performance. The combination of the main brush ensures a thorough and effective cleaning experience, leaving your floors refreshed. The filter helps maintain the vacuum cleaner's performance while reducing dust infiltration into the air you breathe. 100%Made of high-quality materials, environmental friendly materials, soft and durable to use. It is recommended that you replace spare parts every 2 to 3 months depending on the frequency of use to keep the machine running at its best performance. type: A-Main Brush / B-rubber Main Brush Applicable Models: For Dreame Bot L30 Ultra (Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use) Material: plastic colour: As Shown Package Contents: 1 x Main Brush 9 x Dust Bag 6 x Mop Cloth 4 x Filter 4 x Side Brush / 1 x rubber Main Brush 9 x Dust Bag 6 x Mop Cloth 4 x Filter 4 x Side 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 the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.