With the Pop-up Sprinkler I can irrigate my lawn optimal. The surface can be adapted perfectly, if it is rectangular. Each page can be set differently wide. Thus, the distance to the nozzle can be different on all four sides. An extremely positive feature that I found out only after the purchase. So the lawn is transformed, or optionally with bushes are irrigated, etc. The sprinkler must not be exactly in the middle of the watering area are. In addition, I can easily mow the lawn and you do not stumble when playing on the lawn.