IRIS OHYAMA Disposable Heat Packs for 15 Warm Family Socks, Stick-on, Pairs, PKN-15HK

【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction. 【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary. 【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product. 【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer. Product size (width x depth x height): Product size (cm): Length approx. 6.6 x Width approx. 8.8 Country of Origin: Japan Contents: 15 pairs Maximum temperature: 41 degrees, average temperature: 38 degrees, duration: 5 hours Brand name: IRIS OHYAMA