Gold metal keychain with the HYDRO logo. I received several of these from acquaintances, but I don't know much about them. They seem to be quite old, so they may be rare. I couldn't find any information on Google, so I'm unsure about the appropriate price. - Brand: HYDRO - Color: Gold - Material: Metal - Design: Logo - Accessories: Outer box There may be scratches or stains as it is an old item, but it is, in principle, unused. There is something that looks like peeling on the inside, which is probably due to aging. Thank you for viewing.