My six year old son saw these boxes on YouTube and decided to buy his first box with his allowance. He was SO excited when it came in the mail and couldn’t wait for his dad to get off work (daddy is an engineer) to help him put this together. So he sat down and spent an hour putting the first kit together ALL ON HIS OWN while watching the tutorial! He cannot stop talking about it and thinks it’s the best thing ever. Very well put together box, the video is excellent at walking kids through the build, and even young kiddos can make it by themselves if they have a desire to build. Parents - get these boxes for your kids! These boxes create a passion, joy and pride in kids in what they can create on their own. Worth every penny!