I shared Bobby making and playing with this over on Instagram stories over the weekend and have had lots of questions about it. He did have to have help off daddy, but they both loved making it and have been playing with it since. The first section is a book that has interesting facts about the science behind pinball and throughout there are experiments to do to back up the theories. Then there are the instructions on how to make the pinball machine. These are very clear and easy to follow.