Thought it would be a great purchase to keep the kids busy! They all tried very hard to work together to make it work. However, the pieces aren't that big and not that heavy, so they kept knocking them over before they were finished building. Eventually they got something together and got started. However, there are no sample sheets to give you an idea of how to use some of the special items. I had to inspect and study the box. I think it would be helpful for younger children to have a booklet or sheet with some examples of how to use it.