Length: Approximately 7.5cm This product is a disaster preparedness item. Due to sudden disasters, stock may become scarce or out of stock, and manufacturer inventory may run out, leading to long-term unavailability. Therefore, we may not be able to ship based on the information provided. In such cases, we will contact the customer and either wait for the item to be restocked or cancel the order based on the customer's instructions. Thank you for your understanding. This is an aluminum whistle. ・It is designed to hold a piece of paper with personal information (ID card, etc.) inside. ・It's a convenient and durable aluminum whistle. You can use it to call for help with a loud sound in emergencies when you are trapped or unable to speak. It contains a paper to write your personal information on, so if you are injured, you can hand it over to quickly convey necessary information such as "blood type, address, name, contact information." ‼️Please confirm the following‼️ ◆About Packaging◆ We will use simple packaging (simple envelopes, available materials, recycled packaging, reuse of shop bags, etc.). We will pack carefully and as compactly as possible, sometimes folding the item. Thank you for your understanding. o(^▽^)o♪ ✿Regarding the contents, we would appreciate it if you could check the photos and make your judgment. Although it is unused, there may be storage scratches due to long-term storage. Although it is an unused item, everything shown in the photos is included. There may be storage scratches or similar issues. Please refrain from purchasing if you are looking for perfection or are sensitive to such details. ✿We inspect carefully, but the checks are based on personal subjectivity. Also, there may be oversights at times. We apologize. ✿There is no box, so we will ship it in a bag. ✿If you have previously received a "bad" or "not good" rating in a product transaction, we recommend that you refrain from purchasing this time. ✿In the unlikely event that the product evaluation is "bad" or "not good," please contact us before giving your rating. ✿No price reduction ❌ No holds ❌ ⚠️No price negotiation comments ❌ ✿Please understand that no returns, no refunds, and no exchanges are accepted. We strive to ensure a smooth and enjoyable transaction on Mercari, so we appreciate your cooperation. Thank you very much (*^^*)✿ 0102[]]]]]]]]]]]]]]]]] )387