Summary Sometimes this seltzer bottle would just become FAR too difficult to open. Even with gloves and strap wrenches. Part of the issue is that the top was just too hard to get a grip on. So, I built a wrench for it. I doubt many other people will need this as the bottle has been discontinued for 2 years now. But it's here as a reason to tell your wife you need a 3D printer. And yes, it works awesomely. :)