While I need to take full accountability for not measuring, the pictures are EXTREMELY MISLEADING.  I bought this for my office at work and it's pretty much useless to me.  Each cube is about the height of a standard water bottle as you can see in the picture.  If you are truly looking for an organizer, I would steer clear of this one.... it is NOT what their pictures mislead you to believe nor is it a very sturdy or well made item.  Shame on me for purchasing 2 at the same time.  Lesson well learned!