A playing card game that lets you learn about DNA and amino acids while having fun. I bought this at the National Museum of Nature and Science a few years ago, but it's unopened and unused. It's a product you can find as a souvenir at other science museums as well. I think it's good for educational purposes. - Product Name: DNA Playing Cards - Contents: Playing cards - Price: Regular price ¥1,100 - Features: A card game where you can learn about DNA and amino acid knowledge - Design: Package with a double helix DNA design - Language: Japanese - Number of cards: 52 cards, the same as a standard deck of cards Thank you for looking.