Using your Bus Pirate 5 Probe Cable Set is easy. First, connect the probe cable to the Bus Pirate's 10 - pin main header. The keyed and locking design ensures a proper connection. Then, attach the appropriate probe hooks or custom - milled breadboard pins to the 2.54mm Dupont connectors at the ends of the cable. When using, be careful not to let the wires touch the soldering iron for too long, even though the silicone coating provides some protection. For maintenance, keep the cable clean and store it in a dry place. If you want to identify the leads quickly, just look at the labeled and color - coded shrink tubing. Refer to the probe hook guide to choose the best hooks for your needs.