[Compatible Models]Perfect For X40 / X40 Pro / X40 Ultra/ S30 Pro Ultra Robot Vacuums. Made of high-quality materials, environmental friendly materials, soft and to use. [Easy Installation] The side brushes are perfectly matched and the installation method is the same as the parts, which is easy to install, easy to use. [Excellent Performance] Our side brush's innovative structural design effectively prevents hair and other garbage from being entangled and enhances the ability to collect garbage. It can get deep in to corners and snug against walls and baseboard to an excellent clean area. [Premium Materials]With excellent workmanship, the side brushes are made of environmentally friendly materials and not have any pollution to the environment. Our side brushes are made of premium materials, which are more and clean the brushes of other . Side brush can go deep into the corners and edges to remove more dirt, dust and debris Compatible models: For X40 For X40 Pro For X40 Ultra For S30