Very good spark generator and thin, ideal for survival kits, just be careful with the teeth on the scraping blade, they only work from one side, if you hold it from the other side it can't create sparks. The whistle is average, it's better to have one of those that come with life jackets from boats.

This specific lighter, while not being very long in length, is relatively thick and comes with a good whistle at an excellent price. Ideal for every backpack, it also fits in the pocket