Vacuum cleaner accessories: fine workmanship, stronger, more durable. Parts: easy to handle footprints, juice residue, oil stains, etc. on the floor Main brush: can go deep into corners and edges to remove more dust and debris. It can be easily removed and replaced as part of normal maintenance It is recommended to replace the spare parts every 2 to 3 months depending on the frequency of use to keep the machine running at peak performance. Note: The data are all measured manually, please allow 1-3cm error due to differences in light and display, there may be some color differences, please refer to the actual item received.