When my daughter got a little older, around 4 months, she was bigger and she was starting to control her movements. This bath tub was perfect. It fit right in our bath tub, and it still held her safely. The feature I liked best was the temperature. I always worried that the water temperature wasn't right, but with this tub, it tells you! And its always filtering clean water to your baby, so you don't have to worry about dirty water while bathing your baby.