My 18 month old has been loving playing with these. The tone of them are pretty good. They all match up to the tone they are suppose to be. It is really fun teaching my daughter about music in this way. She can hear little songs that you can play on these. They are so easy to just get a sheet of music and just read along and play each bell. It is really simple and so educational for her. She does just move them around and clash them together some times, but they are so durable, it doesn't even scuff the paint on the bells.