peanut head plugs

Ok, I will just go ahead and add to the confusion. Here is what I actually put in and I don't remember why I went with this. As I know my original plan was to use the 5s. I took a pic along side of plug that was in it when I got it. the overall plug is a little shorter, but the part that matters looks to be exactly the same length. Was that plug 'right'. I don't know...