I need to take the SIM card out of my iPhone 3?

I need to take the SIM card out of my iPhone 3?

You will need a pin or the pin thing that came with the phone… There's a little round hole on the side of the phone. Poke it in and the sim and SIM card holder will pop out…

You should have had a tool with the phone to do this if not then simply straighten a paper clip and use that.
Just put the end go the paper clip into the little hole on the sim tray and push gently this will then release the sim tray and you can remove the sim from the device.

Best luck.