Using these hammer headers is super easy. First, grab a hammer. Then, give a few gentle taps on the plastic part of the header to attach it to your Pi Zero or pHAT/bonnet/HAT. Before you start, make sure to read Pimoroni's fitting guide carefully. When it comes to maintenance, keep the headers clean and dry. As for the important note, using a hammer has risks. We can't be held accountable for any damage to your device, headers, or fingers. If you're not confident, it might be better to use a soldering iron.