Benefits and Features: Continuous heating for up to 12 hours. Natural muhwort scent to soothe the senses. Helps relieve cramps, muscle aches, and colds. Convenient design to be used over underwear without direct contact with the skin. Ideal for travel or everyday winter use. Precautions: Do not use while sleeping. Not suitable for pregnant women or those with heat sensitivity. Do not apply directly to the skin or over heating belts or pads. Beware of low-temperature burns that may occur with prolonged use. Usage Instructions: Remove the patch from the package and apply it to the outer layer of underwear. If you feel irritation or excessive heat, remove the patch immediately. Do not use for those with poor circulation or skin sensory problems. Package Contents: 10 Heating Patches Effectiveness: Up to 12 hours of continuous heating