Solid Roller model, the folding mechanism is in common practice of my 7.5 year old daughter to use. Very smooth rolling, the large wheels stumble not as fast on pavement unevenness. Practical: the strap leaves, folded but also good horizontally contribute to the handlebar, is easy to lift for one adult, for my -schwache - daughter not so good when climbing stairs?. Nice detail: a small stand like a bicycle. Lets join with a castle, my daughter uses it for everyday school. Seems to be with us at the school the role model par excellence, have now found that the bicycle with all models is filled in most diverse colors. Since there also very worn models can be found, the scooter seem to keep a long time.