NiziU keychain with a cube design. - Brand: NiziU - Design: Cube-shaped keychain Thank you for viewing. This is a cube keychain that was popular in 2020 during the Nizi Project. I bought it thinking I might use it someday, but several years have passed without me using it, so I'm offering it here. I only opened it slightly to fix the chain inside, which had shifted. It has not been attached to a bag or stored outside, so I'm listing it as new and unused. I also have three clear files that were initially given out at Lawson. I would be happy if you would purchase them together! However, if you don't need them, please let me know in a message either during or after your purchase, and I will ship only the cube keychain!