Asked for a light at the bar tonight. Fellow passed me his lighter and said I could keep it. I looked at bottom and have no idea what this is... : r/whatisthisthing
How to Refill a Bic Lighter: 5 Easy Steps - Survival Cache
How to Refill a Bic Lighter Like a Pro (Three Simple Methods)
How To Refill a Bic Lighter (with step by step photos) - Survival Sullivan