We have the scooter for our 6 year old son bought as young again and he came not so much wanted to take a walk with us. The scooter has 205er roles and a fairly wide tread which we liked. In order to get ahead very quickly and is stable even with both feet as an adult. I think the scooter fits for children who are at least 5 years old. For younger children, it is actually too big and too heavy. Of course it can also be used without difficulty by adults (up to 100 kg).
The handlebar can be found in two different positions, so that he can not twist. Overall, very well thought out and robust. However, one must bear in mind that the scooter (also folded) already quite large us is the fact not so easy (eg in a basket of the stroller) can be transported.
Small minor defect: The logo has almost replaced when unpacking.
In summary, we are very happy ... but will still buy a second smaller roller possibly ...