Certainly there needs to be a hole to attach the tag to a key ring. The standard compressed steel slip ring does not allow much space and thus the hole in a key or tag has to be right at the edge. In comparison, our stainless steel cables allow us to put the tag hole farther in, plus give us room to add an aluminum grommet to make it even stronger.
Our heat sealed lamination is 10 mil. thick. This is the thickest lamination available and requires a commercial lamination machine.
This is our own original design. We have learned lessons from real life. You probably have gotten the discount cards that come with the little keytags you can put on your key chain. They are fairly thick and strong plastic, but it does not take all that long for them to break and fall off your key ring. Our tags are designed to survive for years.
At the top of most tag type plastic lamination pouches is the standard strap slot. This is where you normally attach the tag. When the plastic is heat sealed it becomes very strong, but there is not much plastic where the standard slot is and the tag can be pulled off the strap or cable holding it fairly easily.
Any tag is going to have limitations as to what it takes to destroy it. Thus, to reduce if not eliminate this problem, the plastic part of the tag has a 3/16" hole punched into it. The hole in the paper tag itself is 1/2" providing a ring of plastic that is heat sealed together. This makes the hole much stronger.
Then after the entire tag is heat sealed and the 3/16" hole is punched, an aluminum grommet is machine compressed into the hole. (See photograph.) This makes the tag hole much stronger and virtually impossible for the steel cable to be pulled from the card. As the hole is heat sealed, the paper tag is completely sealed against the environment.