I'm not sure if these are the real thing or not. The blades do flop on all 5 of the ones that I got. I didn't know they should snap open and closed. Also I have never seen any instruction on how to use it. So it's very possible I was using it incorrectly. <br>BUT It bent pretty easy when I was trying to puncture the can lid. I thought (I read once) that can food cans today are a little more heavy duty than the ones used in the 40's when the p-38 was used. I could be wrong on that as well. <br><br>But I still have a couple in my kit and use them for other things.<br><br>Any Ideas on what I could have been doing wrong???<br><br><br>"Stay Frosty"