Thermopad Footwarmer foot warmers M (38-39) (UK: 5-6)

Full foot warmers that can be used immediately. It will only take a few minutes for these warmers to reach maximum heating temperature. Simply place the warmers in your shoes like insoles. Heating time: up to 8 hours.
Max. temperature: 45 °C / Avg. temperature: 37 °C
Ingredients: Iron powder, salt, activated carbon, water, vermiculite.
Safety instructions:

• Not suitable for medical use.
• Not suitable for children under 6 years of age.
• Do not use on swollen, sensitive or damaged skin.
• Do not use while sleeping.
• Do not pierce or otherwise damage the warmers.
• Avoid contact between the active warmer and the mouth and eyes.