I have presented these "Oball" for my 5 month old goddaughter. They spend many hours playing with it. I think it's good to learn about the attack. The workmanship is good but I know nciht whether as these dangerous softeners are included. However, I believe it is made too much fuss about it a bit anyway.
Conclusion: For my godchild an absolutely good gift to which it has a lot of fun and will have.