Kobayashi Pharmaceutical Kiribai Kairo Socks-Use, Stick-on, Long, 3 pairs, Black, Set of 2 Disposable heating pads, stick-on type for socks Brand new, unused Expiration date: April 2026 - These are stick-on type heating pads for socks. - They will warm your feet thoroughly. - Lasts for 9 hours (measured assuming use inside shoes) - Maximum temperature: 45 degrees Celsius, Average temperature: 37 degrees Celsius - Contains deodorizing ingredients, continuous for 9 hours, 2mm thin - Stick-on type for socks, size... 7.2cm x 20cm Although it is a new, unopened item, please understand that it has been stored at home. When shipping, we will take measures to prevent water damage and ship in simple packaging, so please understand this.