Description WHAT IS THIS? A science & technology kit to learn how to be a professional locksmith WHAT WILL I MAKE? Build a giant visible padlock WHAT WILL I LEARN? The visible pin tumbler shows how a key opens a lock WHO IS THIS SUITABLE FOR? Ideal for children who are 5 years with a keen interest in STEM WHAT’S IN THE BOX? Contains everything you need to complete the project apart from a small crosshead
