An excellent source of storage retention for a lot of your dies, especially if you have a lot like I do. The size is for 5.5x8.5, so if you have larger die cuts, they will NOT fit. I only had one die that didn't fit. I had to store it in a different size book by itself. But I have well over 200 or more Spellbinder dies units so I ordered 3 cases (each comes with 3-magnetic sheets) and 3-pkg of 10 magnetic sheets. And it's PERFECT!!! I still have plenty of room to add more dies. I didn't use the rubber stamp side because I have too many rubber stamps to include both, and I already have stamp storage. I only needed storage for my dies and this is an EXCELLENT CHOICE!!! The case closure prevents the dies from slipping out.
It's a perfect book size, so I store them on my bookshelf, which also saves on space in my craft room... I'm so glad I found this!