Feature: 1. Platinum catalytic combustion, no open fire, eco-friendly, safe and reliable. 2. Small fuel consumption, long burning time, economical and practical. 3. Wide range of use, suitable for people of different ages, a necessary tool for warm keeping and health care. 4. You can add an appropriate amount of aromatherapy oil according to preferences and needs, generally 5-10 drops. 5. Fashionable and beautiful appearance, light weight and in small size, easy to carry. Specification: Condition: 100% Brand New Item Type: Hand Warmer Material: Alloy Size: Approx. 8.4 x 8.4 x 2.1cm / 3.3 x 3.3 x 0.8in Applicable people: Suitable for all types of people living, studying and working in a cool environment. It is especially suitable for students in the environment without heating facilities, those who are weak and chilly, menstrual pain during the menstrual period, winter tourism and outdoor sports; elderly people with stomach cold, cold, neuralgia, cervical pain, rheumatism, backache and other conditions need heat Physiotherapists; outdoor workers, such as standing guards, geology, petroleum, scientific research, transportation, and defense workers. Instructions for Use: 1. Open the hand warmer cover. 2. Hold the sides of the fire head with your hands and gently remove them. Do not touch the platinum catalyst with your fingertips. 3. Add the power oil to the funnel. 4. Insert the bottom of the funnel into the hand warmer and rotate the funnel 90°, the power oil automatically flows into the hand warmer. 5. Fill the oil and install the fire head. Tilt the hand warmer about 45°, and touch the flame end of the lighter to the catalyst for 3-5 seconds. Cover the hand warmer and put the hand warmer into the hand warmer bag. After a few minutes, the temperature of the hand warmer can come up to 60°C.. Package List: 1 x Hand Warmer1 x Cloth Bag1 x Funnel Note: 1. After touching the hand warmer with a lighter, the skin should not be in direct contact with the hand warmer, be careful of burns.2. This product is not equipped with power oil and needs to be added with power oil.3. Do not pour the oil directly onto the platinum fire head to avoid catalyst failure.4. Do not overfill the oil. It can be burned for 24 hours in once oiling. Please use it as soon as possible after oiling to avoid failure.5. The color of the cloth bag may be random.