1. Filter: It is recommended to check whether the filter is clogged or damaged every once in a while. If the filter becomes dirty or clogged, it may affect the vacuuming effect and needs to be cleaned or replaced in time. 2. Side brushes: Side brushes will wear out during cleaning and may need to be replaced regularly. The exact frequency of replacement depends on the frequency of use and cleaning environment. 3. Roller brush: The service life of the roller brush will also vary depending on usage. If the roller brush becomes worn or has tangled hair, it may need to be cleaned or replaced. 4. Mop Cloth: How often you need to replace mops depends on frequency of use and cleaning needs. Generally speaking, it is recommended to clean the mop regularly to maintain good cleaning results. If the mop is worn or damaged, it needs to be replaced in time. For P10S Pro/V20 Robotic Vacuum Cleaner Colour:Photo Color Material:Plastic Package contents: 1 pair x roller brush 8x side brush 6x Mop Cloth 7x dust bag 2x filter 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.