Compatibility - The replacement parts compatible with N79S / 500 / N79SE / N79 (DN622) / N79W / N79T robotic vacuum cleaner. Package: Exclusively designed kraft paper box. If the brushes are bent due to transportation, simply soak them in warm water for a while to recover. High Performance - Snap the filters into place for effortless replacement. No tools required, easy filter replacement. Maintenance - Keep your running at peak performance by changing the consumable replenishment kit every 2-3 months, depending on your usage frequency. How to replace the filter: 1.Take out the dust bin. 2.Put the new filter into the dirt bin. (Make sure the black sponge filter is at the bottom) 3.Close the filter door and reinstall the dust bin into the robot cleaner. How to replace the side brushes: 1.Roll it on a flat surface. The brushes will be located at the with shiny connectors. 2.Place a plastic opening tool (or coin) under the lip of the brush head. 3.Pry gently with the opening tool (or