We bought this balloon pit for my granddaughter's first birthday. She had a princess theme so this little castle was the obvious choice. It consisted of 3 separate parts: the castle, the tunnel and the ball pit. The size worked very well for small children. We bought a pack of 100 balls, could probably fit a few more but it worked. The material it's made of isn't very durable so I'm not sure how it will hold up with regular use, but it worked great for the day or two that we had it. After the party was over, she didn't show much interest in him, so she tucked him away. It was very easy to take apart and store.