PREMIUM QUALITY MATERIAL to Made of hightostrength and environmentally friendly materials to ensure optimal performance and a healthier lifestyle.This is a good helper to keep your house truly clean and improve the air quality of your family.HIGHLY EFFICIENT FILTERING TECHNOLOGY to Two brushes are perfectly matched, one for peeling off dirt and the other for sweeping dirt. The side brush reaches deep into corners and edges to remove more dirt and debris. The cleaning filter blocks 99.97 percent of dirt, pet dander and other particles as small as 0.3 microns in sizeIf the side brushes bent due to shipping, recover them by simply soaking with hot water for a while.EASY TO CLEAN AND REPLACE toClean by hand washing in warm water and let it completely air dry before reusing them. Regularly clean replacements parts to improve suction and performance and extends the life of your robot vacuum. For best results, edgetosweeping brushes and filters should be replaced every 2 to 3 months.Multitosurface brushes should be replaced every 6 months.Material:plasticcolour:Photo ColorPackage Contents:4 x roller brush10 dust bag8 x filter8 x side brush2 x cleaning toolOnly the above package content, other products are not included.Note: Light shooting 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 1to3cm.