Tonghui High-Heat Lava Series Handheld Mini Hand Warmers 8h+10 Pieces

How to use: - Remove the warmer from the bag just before use, shake it gently several times, and then use it over thick clothing or wrapped in a thick cloth, avoiding direct contact with the skin. - Be careful not to get burned as it becomes very hot. - If the temperature drops during use, shake it again before using.