YUSUD Butane Fuel Lighter, 2 Pack Torch Jet Lighter with Visible Gas, Lockable Flame, Windproof Lighters, Unique Gifts for Men, Women…

Detailed description of refueling:1. Make sure the surroundings are safe when refilling, and there must be no sparks or fire. Do not add gas while smoking or lighting, please lock the gas valve before refilling.2. Use qualified butane gas, because inferior gas will damage the lighter or reduce the service life of the lighter.3. Before refilling, use a small screwdriver to deflate the air 1-2 times at the air inlet to completely release the remaining gas inside to eliminate the pressure in the gas cylinder of the lighter before refilling.4. When refilling, please stand the lighter upside down, align the outlet of the gas bottle and cover the air inlet of the lighter, press hard two or three times, and hold for about 5 seconds each time.5. After refilling, please wait for about 5 minutes before using to adjust the temperature of the newly added gas to room temperature, and wait for the residual gas attached to the lighter to evaporate before ignition. If you ignite immediately after refilling, the residual gas on the outside of the lighter may ignite and cause danger.6. During use, the flame height will change with the fuel consumption and the surrounding temperature changes, which is normal. After refilling the gas, if the flame height is too high or too low, or the flame cannot be fired during use, the flame height can be adjusted appropriately. (Note +-direction)7. The normal flame height during use should be 1.5-2.5 cm. If you need to adjust the flame height, you can adjust the bottom bezel with your fingers, (-) can lower the flame height; (+) can increase the flame height. Note: When increasing the flame height to (+), the flame height cannot exceed half a circle on the basis of the normal flame height. Otherwise it will damage the product.Precautions1. It contains pressurized flammable gas, please keep away from children and the elderly.2. Do not puncture or throw the lighter, do not throw it i