Our son loves the part and has been for over half a year. In the beginning (about 4 months) it has thanks to the rings can grab him and super cheerful rumgelutscht it. Later, the yellow balls is then migrated into the mouth. With half a year, he has very much struck him to the ground, because the so beautiful makes noise and now it's back to top Super chew because he is teething again. Say the Greifling is a long time interesting for the baby and can even be held early because it is very light. This allows even small babies shake and shake and look forward to the clattering. It is very durable. My son has 8 teeth and you can see a few small scratches in wood, but only a little, when you consider the force with which he rumbeißt it. We can only recommend the part.