To say my 6yr loves his new toothbrush and matching toothpaste is an understatement. He is now running to brush his teeth. He is super proud that he has his own "big boy brush" and shows it off to visitors 😄. It is the perfect size for him to brush his teeth independently, he knows to move area when it vibrates. It is very easy for me to brush his teeth too and reach all the teeth esp the back ones. The brush is smaller and lighter then the fish toothbrush my 9yr old has so the monster one is great for younger kids. I have uploaded a picture if you want to see size difference between adult one, the fish one and the new monster toothbrush As a parent it is great it is charged by USB, my son being a typical curious child tends to investigate everything and takes batteries out of items so it's peace of mind he can't do this with the toothbrush.