1. Increase cleaning efficiency: The main bristles of this roller brush are thick and soft, which can deeply clean the floor and effectively remove stubborn stains, ensuring that no area is missed and every corner can be fully and carefully cleaned. 2. Innovative adjustable roller brush: Equipped with an adjustable roller brush, it can rotate to sweep dust directly into the dust box. This accessory can effectively prevent hair entanglement and maintain the cleanliness and efficiency of the vacuum cleaner. 3. dual counter-rotating extractors: These extractors have a sturdy structure that prevents rapid wear and tear, making them a reliable choice for daily cleaning. The design ensures long-lasting performance and reliability when dealing with various cleaning challenges. 4. Easy and fast installation: This roller brush is simple to design and can be installed quickly without any tools. It is an ideal solution to restore the vacuum cleaner to its best working condition with minimal