We were initially very enthusiastic, but the enthusiasm to read the same, my daughter 13 months has a head circumference of 46 cm, and the glasses hardly fits her by the belt, and wear after 10 minutes she had marks on her nose. It no longer likes touched down. have glasses then tries with a 1/2 year old baby, but the spectacle is again wide, but vo belt would fit her, so it does not fit so well