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A lot of people will have a big bunch of keys which is very convenient to carry around. When we open the door, it always takes some time to find the key to open the door. So how to let the key become easy to receive, and convenient for use?
“Card Key ” makes cards become the carrier of keys. Its volume only looks like the size of the bank card. With the “Card Key”, the key is convenient to receive, and put it into the purse. Just a little push can easily and quickly find the key to open the door. People no longer have to face a big bunch of keys son worry.