My Kero Kero Keroppi collection. I'm selling these because I have too many items. I don't know the details. The cup seems to be a promotional glass from General Oil. Keroppi's friends are rare. The glasses are rarer than the plates. Thank you. - Design: Plate with illustrations of Keroppi and Keroleen - Character: Glass with Keroppi illustration - Year of manufacture: 1996 - Material: Ceramic plate Thank you for looking.