1. Make your for robot always efficient and outstanding performance. 2. The product has been carefully designed to you with everything you need to restore the complete cleaning function of household appliances. 3. The main AeroForce counter-rotating brush is located under for 800/900. The special rubber covering layer allows to work effectively on any type of surface and can remove hair, dust, paper scraps, etc.They are unique in their new design has no bristles, which can prevent animal hair, metal wire and hair from tangling. Robust, flexible and ergonomic. 4. High efficiency filter. This kind of filtration is the advanced . In fact, HEPA is the for High Efficiency Particulate Filter. 5. It can collect stubborn and hard-to-reach dust, which gathers in corners or sticks to the wall. goal is to gather dust and debris directly into the suction holes of the robot. Colour:As shown Material:plastic Package Contents: 2 sets x main brushes 4 x filters 6 x side brushes 1 x cleaning brush 1 x Only the above package content, other products are not included. Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.