This is one of the educational materials from Manabi with, a correspondence course that followed Dorazemi and preceded Detective Conan Zemi. It's a hands-on learning type. It can also be hung on the wall. The short and long hands are linked, and when the long hand goes around once, the short hand also advances. Conversely, they cannot be moved separately. It was convenient because it clearly showed the number the long hand was pointing to, making it easy to understand the time. There are some minor scratches, but it is still in usable condition.