content: My mom just purchased this for my four year old for his birthday. He's already figured out how to go down the hill and spin out at the bottom...as we all did on our big wheels. The front tire of our big wheel wore out quickly from regular use with our older son. This front tire has some additional hard plastic on it that provides reinforcement where it is needed the most. My son is a typically sized 4 year old and this will grow with him for a few years. I'm really happy we found this product!