Great and fully functional as promised. Good value

Wish I had bought these years ago to save money on all of the wasted cans that went flat. No more of that with these. Great fit

The first time I tried to put it on an aluminum can of seltzer I dented the can horribly. By the 3rd try it was easy to do - fast easy and no dents. I’ve had no leaks around the seal where it meets the can or at the screw cap. That said, since most of my can beverages are carbonated, beware that if the can is jostled while the cap is screwed on tight (I.e., the can falls on its side), the pressure from the carbonation while cause this to pop right off. The fit is perfect, the value is just okay. I really like using them a lot because I just don’t like to drink from a can.

I would recommend you clean or wipe off the top of the can before you push on the cover or you will be drinking whatever might be on top of can. Yuk They do not "click" on can and hold as tightly as my old set purchased years ago but they work just fine. They slip on and off without issue. They seal tightly and do not leak. I would expect them to pop off if your can fell off the table to the floor but held up well when I simply knocked can over. Did not leak and it took 12 times before top finally popped off when I tested mine. It will work just fine for drinking a cold pop around the house or in the outdoors but do not expect them to stay sealed if you are rough with the can. Also, once you open a can of pop the clock is ticking on how long it will stay fizzy no matter what you do. I have washed them in dishwasher on top shelf without issue. I see main advantage using these covers is keeping bugs out and reducing accidental spills if can is knocked over. Only marginally helps retain fizz.