In The Fast-Paced Modern Life, We Often Miss Those Good Times In The Past, And Our Lighter, Like A Key Through Time And Space, So That We Can Light The Flame At The Same Time, But Also To Revisit Those Classic Moments, Let'S Work Together With The Lighter, Ignite The Passion Of Life, Light Up The Way Forward, It Is Not Only A Bright Landscape In Our Lives, But Also The Best Pursuit Of Quality Of Life! Witness. How To Fill Butane Gas? First Turn The Knob In The “+” Direction, Then Press The Long Nozzle Of The Butane Gas Fuel Bottle Against The Filling Port Repeatedly To Fill 3-5 Times. Then Turn The Knob Back To Avoid Excessive Flame When Igniting. The Next Critical Step Is To Leave The Lighter For 2 Minutes For The Added Gas To Liquefy, Then Press The Lighter To See If The Flame Size Is To Your Satisfaction, If The Flame Is Too Small You Can Adjust The Knob. If The Flame Is Too Small, You Can Adjust The Knob. Due To The Manual Measurement, There May Be Some Minor Measurement Deviation. Very Sorry! Safety Precautions: Keep It Away From Others And Your Face And Clothes When Using It Do Not Knock Or Place In Fire. Avoid Temperatures Above 45 Degrees And Prolonged Exposure To Direct Sunlight If You Encounter Any Problems During Use, Please Feel Free To Contact Us, We Will Patiently Answer Your Questions, So That You Can Shop With Confidence. (Due To Aviation Regulations, The Lighter You Receive Needs To Be Refueled By Yourself)