So far, the product works very well. I hope it is resilient. Time will tell.
Perfect size for my electronic car key. Read up on the increase in auto thefts by hacking modern car keys. If you want to safeguard your car and personal security this is a good start.
Key Fob Guards
Very sturdy solid construction, using a spectrum analyser I can detect no RF leakage .
Exactly what they claim, I use it as a wallet as well. So all good