Using this extra-tall female GPIO header for your Raspberry Pi is a breeze. First, place the header on your Pi. Thanks to its 13.6mm height, it'll let your PCB clear the Ethernet and USB jacks easily. The 3mm pins mean you don't have to deal with cutting long pins, so it's great for basic Pi plate design. Each order gives you one header. Remember, this header is for the 2x13 header on Pi Model A and B. If you've got a model B+, look for the 2x20 version. As for maintenance, just keep it clean and free from dust. Don't apply too much force when connecting the PCB to avoid damaging the pins.