Durable construction, easy to assemble, small range in foot size, fun for kids

After 15 days of use, they seem quite good and they also have extra wheels. The only drawback is that from 1-1-1 for assembly 1--2, one wheel was defective and it gave us a hard time removing it.

It is very good for beginners.
With a 2-2 setup the first (2!) days helped a lot with getting used to it. Then with a 1-1-2 setup, it held the foot correctly and upright. This lasted for 2-3 weeks. Now with a 1.1.1.1 setup, we are doing very well. Four stars because I don't see them lasting for long and we will probably have to get new ones, maybe aluminum or something, when these break.