Sanrio Showa Retro Kero Kero Keroppi Plastic Cup - Character: Kero Kero Keroppi - Color: Transparent Size: Approximately 6cm in diameter, approximately 11cm in height Ultra rare!! A must-see for collectors!! Available while supplies last. This is a Kero Kero Keroppi plastic cup. Made in Japan, which is rare these days! It's a product from about 30 years ago, but it has been displayed at home, so please understand that there are minor scratches. 1988, 1989. Sanrio. A Showa retro item, it's a very rare product that is no longer in production. Great for display, collecting, or using as a pen holder or vase, etc. Thank you for looking.