The age at which this is intended waking ball is poorly marked on the box: + 0 ans / years. In fact it is intended for babies at least a year. Just look at the size to understand that an infant can do nothing! But for those a little older, it's a wonderful toy. My daughter who is fifteen months do not get tired since I put into his hands. The balls inside are very successful for their noise. And she absolutely not tired of the run, and turn again! Ludi with this ball does not fail its reputation for delivering for toddlers. I'm not an expert in chemistry as some commentators, but the ball seems to pose a risk to its composition for small children. Purchase strongly recommended if you want to start manual and amusing habits for small bout'chous!