Gold metal keychain with the HYDRO logo. I received a few of these from acquaintances, but I don't know much about them. They seem to be quite old, so they might be rare. I couldn't find any information about them on Google, so I'm not sure about the appropriate price. - Brand: HYDRO - Color: Gold - Material: Metal - Design: Logo - Accessories: Outer box There may be scratches or dirt due to its age, but it is, in principle, unused. There is what appears to be peeling on the inside, likely due to aging. Thank you for viewing.