I saw that on a video! But, I don't know how many I will need because I can't find the rest of my keys!! I always have my car and house key separate, but I know there are a few keys I want to put in here.You know whats neat? If you pinch those side things, you move the entire bar to the right, and you can pull off any of the key loops that you don't use. So you dont have empty loops just dangling there for nothing.