We bought my son, who was 3.5 at the time, one when we lived in Germany. All the kids start out on bikes like that. It took him a month or so to get the hang of it, but then he was speedy on it! I would ride my bike with him to kindergarten and he could keep up with me if I was pedaling slow. We just got another for my 3-yr old and he loves it, too. I highly recommend them! They're great for teaching kids balance!