Unexpected Bonus
I'll admit, I initially just bought the full matching set (knife, wallet, keycase) because, well, they matched. The keycase seemed the most gimmicky, but I was curious.
This thing has solved a problem I didn't realize could be solved.
My joints are a bit wonky, especially in my right arm. Holding a small key to turn it in a lock can, on a bad day, cause cramping and even pain. The keycase extends the amount of grip I have on a key, so I can hold it in the palm of my hand instead of with my fingers. The result: no hand cramping when opening a door.