Got these for my father in law. He has a permanent back injury that restricts his ability to walk. We will be installing them on his stairs leading to the basement, they are really steep and we worry about him going up and down to his work shop. The size of these step treads are much larger than I had expected, they actually fit the whole step and not just a strip near the edge like most are. They are pretty clear too and not very noticable. I could see these being useful for kids as well as mine both like to run up and down the hard wood stairs in socks, they have both taken a few tumbles down but it hasn't stopped them running!