First of all, the quantity shoes didn't come in a box. They smell like chemical (like made from oil smell) and look cheap. After airing them out a little, I put them on my sons feet and he started jumping (he obviously likes the squeaky part) but then, he fell on the back from his head, which never happened before. (He has a good coordination and never fell like that) I put another pair of squeaky shoes from the same company and the exact same thing happened. It must be the shape of the sole or he got too focused on the squeak. Either way, Im not letting that happen again. I don't understand there are many many 5 star reviews. The shoes are not good quality at all. They are made of cheap smelly material.