This is a 3D puzzle keychain of Obake no Q-Taro, likely from around 50 years ago. It's designed to be taken apart and reassembled, but it probably hasn't been disassembled. Size: Bottom diameter: approximately 3cm x Height: 4.7cm These measurements are approximate, taken at home, and include any irregularities. As this is an old item, I haven't disassembled it before listing. The keychain hardware is usable. There is some dirt between the parts due to its age, so please consider this before purchasing. It's a rather rare item, so please consider it if you're looking for one. Item/Type...Keychain