Included with my Galaxy Note5 was a small stainless pin with oval shaped head, what is it ?

[AC Question]

It reminds me of a key but the pin is just straight and the oval is more heart shaped and the pin is about the size of a straight pin.

 

[Mst99]

It's to remove the Nano SIM card. Right below the power button you insert the key into the hole to eject it

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