Really like this cute little toy. I did not realize that his flippers flapped when the little ball on his head is pulled which makes my 9-month old son want to put it in his mouth. We still use it at bath time but without pulling the string. I’m sure he will have much fun with it once he’s old enough to know not to try to eat the ball. When I’ve used the tail fins, they worked without issue. The string is easy to pull but not so easy for a young baby. I don’t think my son will be able to pull it until he’s over 18 months.