This cleaning tool is a must have for those also busy to tidy and also for those that are tired of moving the heavy vacuum around all day. It is a level disk that moves around your residence looking for dirt. It demolishes the dust in one area and also moves to following unclean place. When it meets a furniture or the wall surface, it simply turns around and also enters the other direction. You need not worry about it reviewing the staircases because the sensor notifies to a step and also turns itself around as well as goes the various other means. This is a terrific device for those that can not press their vacuum cleaner around any longer without straining themselves.