Double Safety For The Money
Safe Card is a way designed by Kyoung Mo-baek, Won Park-jang & Hyunwoo-jang to safeguard your plastic card. The first protective option allows you to use a credit card only after you unlock it with a password. On the second level of security the device offers to enter the exact amount to be charged to the card interface. Double proof and seems like a very simple to use gizmo.