This is the SIM Card Ejection Tool. Most smartphones and some tablets come with a SIM card, it allows the owner of the phone to activate it with a service plan and store data, such as contacts. The SIM card may need to be removed for various reasons, the easiest way to accomplish this is wtih the SIM card ejection tool. This is a small metal tool that is inserted into the hole next to the SIM tray/port to eject the card. Treat your smartphone with the care and respect that it deserves, do not use some flimsy paperclip. Simply insert the straight end of the ejection tool into the hole next to the SIM tray/port to remove your SIM card from the tray.