I am not into the glow spark to / fire. What if its Worldwar 5 say and there is no longer any petrolium. Your lighter may end up next to the spects of planet of the apes lol. But hey if you have a spark you can always start a fire.Thank you.
The lighter is refillable, so it's not thrown away when empty. I've made several of these kits, and all the lighters are refillable, and often recycled from one I might find in the street. So no need for plastic to enter the environment at all.
You can add a small ferro rod, and/ or flint and steel, and a bit of charcloth or char punk wood to this kit, and also a fresnal lens if you want, which gives 5 ways to get a flame in any sort of conditions.