It's a good kit, as with all K'nex stuff. In my view though, the end product has appeal for children aged 7-9, but my 7 year old's fingers just weren't strong enough to clip some of the bits on which meant that I had to help and once I'd helped, in her view, it wasn't her model any more. The tongue structure is disappointingly flimsy - when I'd finished it, Lucy having lost interest, the model movement was good, but the tongue kept falling off and tripping it up. Couldn't get it to stay together. There must be a good reason why the tongue couldn't come in one piece, rather than three, but I can't see what it is.