To explain how it works, Its functions are similar to other cryptex models. Most cryptex capsules have wheel locks that, when lined up, make a sequence of letters or a word. In this cryptex, there are sliding bars instead of wheels. There are only three ways to position the bars (as shown in the pictures), so there are less combination to make. There are only three locks in this model, but more can be added to make it more complicated to solve.
If a video is needed, please ask. I'll make an Instructable on this in the future.