this review title is: an autism special item and the content is: we have a severely autistic child being able to use the shape of this head and brushes on both sides and top of the teeth is a godsend we sent one to his autism school for his teachers to work with him too our child bites so you do not want to get your fingers too close to the business end of those chompers we would call this item a must have.there are other information for this review, one is this reviewer did purchase it and the other is 0 people think this review is helpful.