I be plan on buy Sophie as my 4 month old girl 's first teether , but this be so cute and different , I go for it instead . she have a love\/hate relationship with it . I never know baby could have such a complicated relationship with a toy . sometimes she find the squeak hilarious and be totally engage . other time , it completely appal she . there be no tell when she 'll like it and when she will not , so I get it out often , and after I have shoo the dog away , give it a go . if you do have dog , make sure to keep this out of they reach always . I know if mine get a hold of it , it would be destroy in seconds because of the thin rubber . not that the thin rubber be a bad thing , since it be hollow , it make it very easy for we girl to hold , when she be in the mood .