Using these jumper caps is easy. First, find the male pin headers on your board or device. Then, simply place the jumper cap on the pins you want to connect to create an electrical connection. When handling them, be gentle to avoid bending the pins. Store them in a dry and clean place to prevent damage. If you notice any dirt on the caps, you can use a soft, dry cloth to wipe them clean. Don't expose them to extreme temperatures or high - humidity environments as this may affect their performance.