It's very easy to connect. Different color and alligater package is serve for your projects and it should be at your desk, in case you need it one day.
Alligater clips easy to use to connect signal or voltage connection. ıf you need to make small solder but you dont in this case too you can use these. These alligater clips insulated.
Small Tip for Makers: Don't pull the cable, it may come off the clip. But there is no need to worry. In case it breaks it will work if you reconnect and solder it.