Calling Cards,Scratch Cards
Prepaid Scratch Telecom Phone Card,Scratch Card For Mobile Phone, Recharge International Calling Card with Access Pin Number.
These cards consist of serial numbering and password, some only with a single number, such as network prepaid card, game cards.
Serial number is visible, yet password is hidden behind the scratch part, only when users scratch the scratch part, the password can be seen.
Always pack each card in a pp bag,to make sure every pin is good to be protected.