Hokkairo refers to Kowa's hand warmers. Expiration Date: 2026.04 ※The expiration date of the hand 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: 130mm x 95mm Sold in a set of 30. This is the "non-adhesive" type!!! Maximum temperature: 70°C Average temperature: 55°C Appropriate temperature maintained stably for 24 hours! Excellent heat retention, a warm hand warmer anytime, anywhere. Shipped in a Nekopos box and delivered to your mailbox.