UNION ARENA Union Arena Unia-ri (Union Arena) Dr. STONE Dokusuto (Dr. Stone) Yellow Dr. STONE Ryusui Nanami Stored in a binder for collection purposes and kept in a dark place. I haven't played with them, but since they are stored by an amateur, please refrain from purchasing if you are sensitive to imperfections. We cannot accommodate initial scratches, etc. Please refrain from price negotiations.