The Harbor Freight one wouldn't even light.Not sure of the stock number as I disposed of the packaging. I consider the HF product to be gross misrepresentation (thus my warning).

The Doan brand I've been playing with the mag flakes scraped by knife would light but of course had the other problems of being so light as to want to blow away. I've been working on techniques for getting the most out of them. (like using pine resin blobs and dry grass tinder on a piece of bark)

Of course real tinder like cotton balls in vaseline and crumpled paper and so forth work much better.

I also carry waterproof matches with tinder as well as a butane lighter when I'm hiking. When you really, really need a fire there is no payback for style points.