Great invention! I bought it for my 3 year old daughter when I had a second child. I was afraid she does not dare to ride it, but love it! Suitable for High Trek Stroller Bébé Confort smoothly. The height of the board in position "rest" gene slightly when walking, but if you shorten the rope a little, it's good. Warning: the weight of the stroller High Trek alone is considerable, when the charge with two children it becomes very heavy ... it's a sport! Not for the lazy, especially when used in the mountains!