Kento Nagao Naniwa no Niwa acrylic keyholder. I purchased a set on Mercari, but I am selling one because I won't be using it. I believe it is an authentic product. I have never opened it since it arrived, but there may be initial scratches, so please refrain from purchasing if you are concerned about this. Immediate purchase is OK. Even if someone has commented, the person who purchases immediately will be given priority.