You can buy Japanese bento boxes from various sources, both online and offline. Here are some popular places where you can purchase Japanese bento boxes:

1. Online Retailers: Websites like Amazon, eBay, and other online retailers often have a wide selection of Japanese bento boxes in various styles, sizes, and materials.

2. Japanese Specialty Stores: Specialty stores that focus on Japanese products, such as Japanese grocery stores, Asian supermarkets, or Japanese lifestyle stores, may carry a selection of bento boxes.

3. Kitchenware Stores: Brick-and-mortar kitchenware stores or department stores often have a section dedicated to Japanese or Asian kitchen items, including bento boxes.

4. Japanese Stationery Shops: Some Japanese stationery stores also sell bento boxes, especially those catering to school supplies or office accessories.

5. Online Japanese Stores: There are several online stores specializing in Japanese products and bento supplies. They often offer a wide range of bento boxes, accessories, and related items.

6. Japanese Gift Shops: Gift shops that focus on Japanese culture and products might also carry bento boxes, especially during special occasions or events.

7. Craft Fairs and Asian Festivals: If you attend craft fairs, food festivals, or cultural events that feature Japanese or Asian themes, you may find vendors selling bento boxes.

8. Import Stores: Some stores that specialize in importing goods from Japan or other Asian countries may have bento boxes as part of their product offerings.

When purchasing a Japanese bento box, consider factors such as the material (plastic, stainless steel, wood, etc.), size, compartments, and design that best suit your needs and preferences. Additionally, read product reviews and check the specifications to ensure the bento box meets your requirements.

Whether you prefer shopping in person or online, there are numerous options available for acquiring a Japanese bento box to enhance your lunchtime experience with delicious and aesthetically pleasing meals.