Idea helmet super-quality is not good

In the helmet the inner workings always ruscht from the attachment of the helmet. Our son has been looking forward with three years on the huge helmet, only the joy did not last long. Just after Christmas we bought another (swapped at Christmas man) and he is really happy with the new helmet. The new helmet was not more expensive than the Theo Klein.
Previous post did not make sense, because I would have had to bear the full cost of postage.
Conclusion: Idea helmet super quality not really good.