**WARNING** If you have a Roborock S5 this brush will ruin your fan motor and the suction will stop working. As long as it fits in the brackets, the brush is too wide, not allowing enough air into the cleaner and thus overloading the fan. This happened to me a few days after installing this brush and now the vacuum cleaner doesn't work. DO NOT BUY if you want your vacuum cleaner to keep working! I don't know about other models, but I daresay it's the same.