I bought this for my nine year old daughter and she and her friends have had so much fun designing,drawing and passing the notes between themselves. They have been busy making up secret codes and they love the fact that any one outside their little club doesn't know what they are saying to each other. The quality of the set seems sturdy enough for them to use the parts over and over without the fixings getting worn so the necklaces have been passed around loads. On the strength of this I have bought several other sets to give as gifts for children aged between 5-9 and have always had really positive feedback from both the kids and the parents. (The boys really liked the Ben 10 version with the pen that lights up!). Overall a really good toy with a really lovely sociable element to it.