Constant temperature heating: long heating for time and balanced heating Applicable scenarios: This hand warmer is suitable for cold work, cold classrooms,, shopping, dog walking, traveling, camping, hiking or any outdoor activities in cold weather Safe to use: No open flame is gentle and warm, you can use it with confidence Hand warmer: Refillable kerosene heater, small in size, easy to carry, and comes with a flannel bag that can be easily put into your pocket Warm gift: It will bring you warmth throughout the winter, and it is also the best winter family