Do you know what this is ? If you have used it then you are old

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The picture above is the data storage media of the old days around the 80's. The brand is 3M which at that time has a decent quality. If you ever wear it, of course you are now old. 😆 😆 😆.

This is my own photo by Hive account@askari.
Taken with my smartphone : OPPO R7Sf.
Made with meme generator