I bought this at a character goods store. It's a Vietnamese-made stainless steel lunch box. It's convenient to carry and has a stylish design (*ˊ˘ˋ*)。♪:*° I've used it once or twice, but due to the nature of the product, there is some wear and tear. Therefore, I would appreciate it if you could understand that this is a used item. ☺️ ※ Approximately 9.5 cm in diameter