"I bought this for my daughter's 4th birthday. My other daughter, age 6, put most of it together. They played together with the set for HOURS! Both of them are enjoying it so much! It wasn't too difficult for the 6 year old. In fact, I think the 4 year old could have done it if she'd been interested in building it. She just wanted to play with it when completed. It worked out great for us!"