Neat!!
Shame on me, I thought the Playground section was just a showcase of existing projects. I have a lot to learn 
BroHogan, thank you for answering, but my question was simpler than that, I just wondered what was the difference between male and female jumpers, and when to use one or the other. But I'll search by myself for that, thanks to all of you for helping me.
Now I want one for christmas