This is a custom-made coin, which contains a programmable NFC chip. Why would you want it? Well, you can program your own URL which opens if you tap the coin on the back of your phone.
Customized design - you will provide your own photo and this will come on one side of the coin, just like in the picture.
Super-useful - think of opening your banking app when tapping it, or opening a PayPal link with your details pre-filled in. Or the ultimate use case, sending allowance to your kids digitally when they tap your phone with that coin.
