These aren't very good eyelets at all. I recently got a Crop-A-Dile and when I saw these, I thought they'd be perfect. Not so. The backs are really hard. The only way I could get the back flattened was by using really thick chipboard and setting it over and over. I tried using my Crop-A-Dile and also a hammer set I have on paper and thinner chipboard and the results were awful. The front looks great, but the back was not flat at all, not even a little bit. I'll definitely not be buying this brand again...
Agree with other reviewer. Thought they would be great for crop-a-dile but they do not flatten well at all on the back. We'll still find a use for them somehow, but won't be purchasing again.