PREMIUM QUALITY MATERIAL - Made of high-strength and environmentally friendly materials to ensure optimal performance and a healthier lifestyle. This is a great helper to keep your house truly clean and improve the air quality for your family. HIGHLY EFFICIENT FILTRATION TECHNOLOGY - Two brushes are perfectly matched, one for peeling off dirt and the other for sweeping away dirt. The side brush reaches deep into corners and edges to remove more dirt and debris. The cleaning filter blocks 99.97% of dirt, pet dander and other particles as small as 0.3 microns in size. If the side brushes have been bent due to shipping, restore them by simply soaking them in warm water for a while. EASY TO CLEAN AND REPLACE - Hand wash in warm water and allow them to air dry completely before reusing. Regularly clean spare parts to improve suction and performance and extend the life of your robot vacuum cleaner. For best results, edge brushes and filters should be replaced every 2-3 months. Multi-surface brushes should be replaced every 6 months. Material: plastic color: Photo color Package contents: 4 * roller brush 10 dust bag 8 * filter 8 * side brush 2 * cleaning tool Only the above package content, other products are not included. Note: Light photography and different displays may cause the color of the item in the picture to differ slightly from the actual item. The allowed measurement error is +/- 1-3 cm.