My son (3 years) mowing for a long time with me. If it takes too long or wiedermal he wants to mow another location, then he takes his little and mow for themselves. The problem is that the noise generated at the wrong advice and indeed to the front wheel. He pushes too hard, then the front wheel goes up and already is silence. In the low-price competition, this is a better solution. Perhaps also the problem, why it here from another wheel be had - could indeed patent protection on it are .... I therefore subtract a point. Sometimes my son is sad that he no door and no container for the grass but otherwise very satisfied with it.