1、Platinum catalytic combustion, no flame, safe and reliable to use. 2、Low fuel consumption, long burning time, highly economical. 3、Beautiful appearance and convenient, portable to carry with you. 4、Widely applications, suitable for both adult, children and the elder. 5、Can add appropriate essential oil, normally about 5-10 drops. 1 x Warmer 1 x Storage Bag 1 x Funnel  Condition: 100% Brand NewItem Type: Hand Warmer Optional Color: Black, Blue, Orange, Green Size:Approx. 9.7 x 7 x 1.6cm / 3.8 x 2.8 x 0.6inFunction: Providing 60℃ warm for a long time Material: Iron Instructions: 1. Open the upper cover of the warmer. 2. Hold the two sides of the warmer with your hands and gently remove it. Do not touch the platinum catalyst with your fingertips. 3. Add power oil into the funnel 4. Insert the bottom of the funnel into the furnace and rotate the funnel 90 degrees, and the power oil flowing into the furnace automatically 5. Fill with oil and fire.Tilt the furnace at an angle of about 45 degrees and contact the tail of the warmer with the catalyst for 3-5 seconds.Cover the upper cover of the warmer and put the warmer into the warmer bag. After a few minutes, the temperature of the warmer will up to about 60℃.