I bought this for my 3-year-old's birthday. His father, 6-, and 8-year old brothers assembled it easily. He loved it at first sight but wasn't sure how to use it. After watching his older siblings (aged 5-8) thoroughly enjoying it both indoors and out he gradually caught on and uses it every time we play outside. My only hesitation is when they use it going downhill since there are no brakes and it can go quite fast. Also if they turn the wheel too much it is very easy to tip over.
One of the most enjoyable toys my grandkids have received! I have bought 6 and would buy more if I had more grandkids!! They ride in the house and no scratches on the floors. They ride for hours on end.. From ages 2-9 having a ball!! Love this toy !!!