While the concept of the marker case is excellent, it does not work with all markers. I use one of the top selling name brand markers and the slots in the marker case are too small: my markers do not fit into the slots. The manufacturer should clarify what type of marker will fit in these cases and not describe it as though all markers can be stored in it. I was excited about the case but very disappointed that it cannot be used for my markers.
This came with another two pieces that looked like they might be intended for the middle section (between bottom and lid), but they did not fit there, nor was there any way to attach them. Also, they were not pictured, so I am not sure why those pieces were included. The bottom of this case has little squares for pens to sit in, which holds them in place fairly well - not perfectly straight, but my goal was to get all my pens in one place, so I accomplished that. I prefer to store my pens flat, and when you lay this down, they do not stay in place as well, so it is not perfect, but pretty much does what I need it to do.