Introductory set of 2 x hands and 2 x feet warmers

To use the hand warmers, carefully read the instructions supplied with the product.Remove the warmer from the packaging in an ambient temperature of around 20°C (house, car). Activates when it comes into contact with air At 0°C or 2,000 m altitude, blow several times on the warmer to activate it.When the warmer is well warmed, after 10 to 15 minutes, place it in a confined space, a coat pocket or trousers. Slip your hands into the pockets to warm up.

Remove the warmer from the packaging in an ambient temperature of around 20°C (house, car). Activates when it comes into contact with airAt 0°C or 2,000 m altitude, blow several times on the warmer to activate it.When the warmer is warm, after 10 to 15 minutes, remove the adhesive strip to stick it to the sock, at the toes, before putting your boots back on.

These warmers are only for use on the hands, they should not be placed directly on the skin or any other part of the body. They should not be compressed. Do not use while sleeping. Do not use with cosmetics or other heating devices. Do not place two warmers in the same pocket.

These warmers, only reserved for feet, should not be stuck directly to the skin or any other part of the body. Do not place them on the instep; they should not be compressed. Do not stick them to thin socks or tights. Do not wear them with rubber sandals or boots. Do not use while sleeping. Do not use with cosmetics or other heating devices. Do not place two warmers on the same foot.

These warmers are exclusively for use in cold weather, do not use near a source of heat: heating in the car, by the fireplace, etc. They are not designed for intensive sports activities and are to be avoided in the case of perspiration.If the warmer seems too hot or the sensation is unpleasant, or causes irritation or a rash, remove it.

These warmers are not recommended for children under 12 or those with a shoe size below UK size 4.5. Children, the elderly and disabled people should use this product with care and under supervision.If you have diabetes, fragile or sensitive skin, circulatory problems, paralysis or damaged nerves, arthritis, rheumatoid arthritis, or are a pregnant woman or in the case of doubt, we recommend that you consult a doctor before use.Do not apply to frostbite or desensitised skin.

The warmer is not working:_ If there isn’t enough air around the warmer : in a neoprene overshoe or a rubber boot for example._ If conditions are extreme: in extreme cold, the warmer provides additional warmth to the operating temperature, but unfortunately it struggles to warm up if the temperature really is too low._ If the altitude exceeds 3,000 m, the lack of oxygen reduces the reaction.

- FOOT warmers should only be used for your feet and should not be used on other parts of the body-HAND warmers should only be used for your hands and should not be used on other parts of the body

Children, the elderly and disabled people should use this product with care and under supervision.Seek the advice of a doctor before use in cases of diabetes, delicate or sensitive skin, blood circulation problems, paralysis or damaged nerves, rheumatoid arthritis, if you are pregnant or if you have any doubt.Do not apply to frostbite or desensitised skin.Do not use while sleeping.Do not use at the same time as external analgesics or other heating devices.

The exothermic reaction consumes the activated charcoal and oxidises the iron. Once the fuel is consumed, the reaction is complete and the powder becomes hard.