Tachikichi Adam & Eve Large Plate: Approximately 27cm in diameter Small Plate: Approximately 16cm in diameter Product Features: Material: Stoneware The backstamp indicates "MICROWAVE PROOF". Made in Japan. I received these over 10 years ago, but I've never had a chance to use them, and they've been sitting in the cupboard. They are unused, but since they are old, I'm listing them as "Like New". The simple colors will make your dishes look great. No outer box. I plan to wrap them in bubble wrap and ship them in a suitable box.