Hyton, Car Key Signal Blocker Case 2 Pack Secure Signal Blocker Pouch Bag RFID Blocking Credit Card Protector Antitheft Lock Devices Block Any Signal of WIFI/GSM/LTE/NFC/RFID, Black

Very disappointing - worked for a few weeks and no longer blocks the signal from my car keys

Prevents signals from being read and adds piece of mind that you don’t unlock the boot or car when it’s in your pocket.Great for keyless entry cars. Love the fact that front pocket lets you use the key then back pocket prevents use of key.

Pouch too small...dimensions described seem to refer to the package, rather than the item itself. Didn’t work, either!