Unused, but it's several decades old. I put in a battery just to be sure, and it works. The approximate size is: 17 cm wide at the base and 22 cm high. Please allow for some error. It also has a pendulum, but I didn't attach it because I was worried about breaking it. Since it's an old item, if you're looking for something in perfect condition or with high performance, please buy a new one. I cannot accept returns or complaints, so please only purchase if you understand that it's an old item. The outer box is not part of the product. One battery is included, but it's from that time period and is not usable. I'm including it in case someone buys it for nostalgia. I'm cleaning out my parents' house. I will need to go to my parents' house to ship it, so I may not be able to ship it immediately. I visit there every week, so I will ship it within at least 7 days. If you are concerned about shipping, please ask questions beforehand. Thank you.