The main brush for Arie/Jannie 4.0 is an essential part of this smart robot vacuum cleaner. This brush is designed to efficiently and thoroughly remove dust and dirt from various surfaces in your home. The brush has soft but durable bristles that effectively sweep up hair, dust, crumbs and other dirt and direct them to Arie's/Jannie dust container. Thanks to its high-quality design and careful construction, this main brush is highly effective and long lasting. Replacing the brush on a regular basis is recommended to maintain the optimal performance of your robot vacuum cleaner and keep your house clean.