Description: Keyless entry car protector :This car key signal blocking sets is a must for your car protection.the car key signal blocker pouch keep your car's security system from getting hacked. protects your personal and financial data by blocking RFID scanners & readers from detecting your cards' RFID signals. Perfect size and sits all brand car keys: Our faraday pouch size 12.7 cm (5.3 in) x 8 cm (3.35 in), except the ensure the faraday bag works well, this handy faraday pouch for key fob is the perfect size to protect your keys, integrated access cards, or other small electronic devices such. .