Main brush: This is the core part of the vacuum cleaner, mainly responsible for sweeping stains and dust on the ground. As the usage time increases, the main brush may lose its original effect due to wear or dirt accumulation, so timely replacement is necessary. Side brush: The side brush assists the main brush in sweeping dust from the edges and corners into the vacuum cleaner, ensuring comprehensive cleaning. Similarly, the side brushes may also wear out due to use and require regular inspection and replacement. HEPA filter: HEPA filter is a key component that ensures the cleanliness of the air emitted by the vacuum cleaner. It can effectively filter out small particles such as dust and pollen, protecting indoor air quality. Regular replacement is necessary as the filtration efficiency of HEPA filters decreases over time. Wipes and wiping cloths: These accessories are used for mopping functions and can remove stubborn stains and oil stains from the floor. As used, the cloth and wiping cloth will gradually become dirty and worn, affecting the cleaning effect, so regular replacement is also necessary. These replacement parts are crucial for the optimal working condition and cleaning effect of the vacuum cleaner of the sweeping robot. To cleaning effectiveness and extend the service life of the machine, it is recommended to regularly check the condition of these accessories and replace them in a timely manner when needed. Applicable Models Compatible For Debot T50 PRO Material: Plastic Color: As shown Package Contents: 1 x Main Brush 2 x Dust Bag 4 x Mop Cloth 2 x Filter 4 x Edge Sweeping Brush 1 x Cleaning 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.