Kiribai Kairo Haru Kairo Kobayashi Pharmaceutical Disposable Kairo (Warmers) 14-hour duration Made in Japan Expiration Date: April 2027 17 pieces These will be shipped via Yu-Packet Post after being removed from the packaging. There are no smokers in the house, but there is a cat. I am careful, but cat hair may occasionally be present. Please be aware of this before purchasing. Thank you.