Hours and hours of educational value
My son worked on this project for several months. It is a very long and time consuming project as you manufacture about a dozen bricks at a time. The bricks must then sit at least over night. When you start building, you can only build 3-4 layers in a day and then the glue/bricks must set overnight. We encouraged our son to keep at it, a little every day and the completed project is well worth all the reminders and time. This is a very educational project for anyone interested in castles and building them from scratch.