How do you activate it and where are the hand warmers placed?
To use the 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 on contact with the air At 0°C or 2,000 m altitude, blow several times on the warmer to activate it.
When the warmer is well-heated, after 10 to 15 minutes, place it in a confined space, a coat or trouser pocket. Slip your hands in the pockets to warm up.