There should really be at least a slip of paper explaining the set up. It's not intuitive once out of the box especially if you've never used a 3 hole punch before. Just trying to take off the plastic safety peices I managed to somehow break the 3 hole punch. The two adjustable hole punches fell out of the track and got stuck inside the press. I couldn't adjust it back and I couldn't take it apart. This cost me more trouble than I needed.
Love the 3 hole punch but wish I was able to move the hole punch more so I could have a 2-punch for 4x6 index cards I need to punch 2 holes into and be able to align the index card to the far edge. I marked where the edge is supposed to be with a black market.