Using these hammer headers is a breeze. First, take out the components from the installation jig kit. Place your Pi Zero or pHAT on the acrylic base pieces. Then, position the header (male or female) as needed. Use the acrylic top piece and gently tap with a hammer to attach the header. It's important to follow Pimoroni's guide for the best results. When using the headers, always remember that hammering is at your own risk. Be careful not to damage your Pi Zero, pHAT, fingers, or the headers themselves. If you're worried, it might be better to get a soldering iron. There's not much maintenance required for these headers. Just keep them clean and store them in a dry place when not in use.