I purchased two of the single Portaink cases and one box (24) of the inserts. After reading all of the "rave" reviews I decided it was just what I needed for my many different ink pads. First of all - it came with no instructions as to how to put in the inserts - after much time, emails etc. I finally gave up and bought a special glue and glued them to the back (so the smaller pads wouldn't slide too far back.) I was eager to put my ink pads in, and extremely disappointed to find that width wise they wouldn't go in and lengthwise was also a problem as they were not steady and would fall out. Most of my ink pads are "Color Box" and I thought I had read that they would fit -but nothing mentioned that they were too wide for the openings width wise. I have a few "stampin' up" ink pads - and they fit perfectly. In my opinion it should be noted that these cases are made for that size and that size only. A great waste of time and money.