My kids love marbles. We have plenty to go around and they are used for all sorts of things. I came across this cute little game and had to give it a try. It came with its own set of marbles, which are pretty cool because they are bigger than what we have. It has been a huge hit for everyone, but especially Harkin. He loves trying to get the marbles through the tunnels and has learned some new numbers by it. Which he is really into these days- numbers that is. It definitely has filled up an afternoon.