There are quite a variety of these dollar store lighters around. Sometimes I can find them for 3/$1.00.

Quality control seems to be variable from brand to brand and batch to batch. They're generally knockoffs of the old classic Cricket lighter, which was perhaps not as tough or reliable as a Bic but was definitely worth having on you. I recall that the adjustable flame saved a lot of singed knuckles when lighting camp stoves, for example.

If you light a lot of fires, or stoves, these are useful and cost-effective. I stuff them into all my jackets (after testing) as spares. For critical situations, though, you'd better have backup.

My 2c.