My son is in speech therapy and SLP recommended getting these so he can practice mouth movements, control and to get him excited about making sounds. These are supposed to make noise when sucking in and blowing out, and not all of them do that. Some are also very quiet and very hard to.get noise our of at all. But overall, these ones are designed to be party favors and they will work.perfectly for that.
Rating: [3 of 5 Stars!]