As part of normal maintenance, it can be easily removed and replaced The mop cloth has good softness, while cleaning the dirt, it also protects the floor from being scratched. The dust bag is made of melt-blown fabric and non-woven fabric, combined with the cleaning station can effectively capture 99.7% of ultra-fine dust down to 0.3 tiny particles. The side brushes are perfectly matched and the installation is the same as the old parts, which is easy to install, easy 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 Compatible Models: For Bot L20 Ultra For Bot X20 Pro (Due To Different Batches, There May Be Slight Differences Or Color Differences In The Actual Details, Which Does Not Affect Use) Colour:As Shown Material:Plastic Package Contents: 1 * Roller Brushes 1 * Rubber main brush 4 * Mop Rags 4 * Filter 4 * Side Brushes 4 * Dust Collection Bags 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.