ok, I don't know if this has been asked or not but I would like to take the chance to try to clear this up for any one that might have the same questions as me. I don't know if it's been added or not yet (Due to I know the wiki was being updated)

What are they?

How do they work, actually?

I know the locks come with it, so how do you go about making them (what mats are needed) on other toons and if the locks come with it how do you go about making them?

what are the benifits?