Works beautifully on the Gate Fold album. Nice weight and construction. I would not use it on a side closing except if you made a fake leather belly band sort of wrap so it could lie flat on the front of the album. The two pieces must be positioned along side each other as in the photo.
What I really like about these is the little ledge it has just above the loop where you go to put the latch in so as to stop the latch from popping out at any given moment. It actually requires some work to lift up the latch which is fine by me as I love the added security.