I really like this system for organizing my Spellbinders Nestabilities dies. I can usually fit 2 sets per magnetic page (sometimes 3 if small) and they fit in the case perfectly. By being magnetic on only one side, it prevents dies from the page behind it getting pulled off. I bought extra pages and love that all my dies fit in it and I have room for my expanding collection. It's the best system I've seen for organizing and traveling to crops with your dies.