Metal Lock allows you to leave your license plate number directly in the car, even in the dark. In case of an emergency, either a parking attendant or any other person can dial you and alert you. And if you don't want to talk, just cover the number with a magnetic slider.
Features
Metal Lock has a set of five sets of numbers, so you can leave the number in any combination. Also, each digit on the parking card has a luminescent coating that highlights the number.
Gamepad for console 
Gaming headsets 
Gaming keyboards 
Gaming mice 
Gaming microphones 
Gaming surfaces for the mouse 
Adapters 
Cables 
Cases for mobile phones 
Cases for tablets 
Phone chargers 
Power Bank 
Protective glass 
Smartwatch straps 
Styluses 
Tripods 
Wireless magnetic chargers 
Laptop bags 
Laptop cases 
Headphones on-ear 
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Wired headphones 
Wireless microphones 
Wireless speakers 
Accessories for car care 
Car Charger for Phone 
Car phone holders 
Car vacuum cleaners 
CarPlay and Android Auto adapters 
FM Transmitter for Car 
Fragrances for cars 
Jump starters 
Parking plate 
Tire Air Compressors 
IP camera 
Lighting devices 
Multifunctional cleaning kit 
Network filters and extension cords 
Office keyboards 
Office mice 
Office sets (mouse + keyboard) 
Portable uninterrupters 
Rechargeable batteries 
Smart scales 
Travel adapters