We see kids of ALL ages having SO MUCH FUN playing and creating builds. That being said, we provide a suggested range of 3-7 years old because that is a sweet spot for the kids to get the most years out of it. Older kids continue to use it and make amazing indepedent builds. We don't recommend it for under 3 years old due to federal safety regulations stating the foam and zippers on baby products as choking hazards.