Dangerous for even 3 year olds, even though the box says 1  up. The slide is very flimsy and tips over without much force. Even worse are the stairs that have sharp unfinished like edges on the back. My daughter’s foot slipped the first time she went on it (probably because it’s so wobbly, and yes it was on an even concrete patio) and she got a big gash on the back of her heel. Not sure how this company is able to sell this product it’s truly a liability.