What can I say, These have got to be the best on the market...  I eat tacos at least twice a week... these don't fall apart before you get done preparing them like other shells.  They last longer afterwards before they start to get soggy, plenty of time to enjoy the taco before they start to fall apart. The only one that I don't have to preheat, ( although better preheated ) first to make them crispy. They work just fine right outta the box.  LOL