The round brush is designed as a detachable mode for easy replacement The round brush reliably removes even stubborn dirt from floor surfaces, and thanks to its rotation it loosens dirt from the floor. The dirt is safely transported into the dust container by the strong suction flow. We recommend that you regularly remove threads and hair from the bristles of the round brush. Clean brushes keep your home robot operating at performance. 100% new and high quality Made of high quality materials, more Exquisite and delicate, highly matched with equipment Solid and , long service life Easy to install and reliable to use Material:plastic colour:Black Package Contents: 1 x Main Brush Only the above package content, other products are not included. Note: Light 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 +/- 1-3cm.