Hokkairo refers to Kowa's brand of disposable body warmers. Expiration Date: 2026.04 ※The expiration date of the body warmer refers to "the period during which the indicated temperature specifications are guaranteed," not "the period during which the product can be used." Please use with confidence. This is stated on the official website. Made in Japan Kowa Size: 93mm x 55mm Sold in a set of 60. This is the "non-adhesive" type!!! Maximum temperature: 70°C Average temperature: 56°C Maintains a stable and appropriate temperature for 12 hours! Excellent heat retention, providing warmth anytime, anywhere. Will be shipped in a Nekopos box and delivered to your mailbox.