I have several ways I keep my spellbinder dies. I have a peg board. I have a magnetic bulletin board. I also have two full Art bins and plan on ordering a third. For full use of the sheets, open the bin and let the sheets spread out at the opening (don't pick through the stack as this will cause all kinds of problems), file through the sheets, pull out the die set or sets you want to use. It is convient to keep the sheet out and replace the dies as they are used so they don't get lost. Also dies can be kept in sets. If the sheets were magnetic on both sides, the sheets would stick together. There are just a few tricks to use the art bin efficiently.
The person who invented the magnetic sheets for the art bin is a genius. My drawers were a mess of spellbinders dies that I kept in the original packaging but could never find the one I wanted and when I did, it was a hassle to get it out of the packaging and then get it back in. Now my dies are neatly on my desk in the art bin, not getting bent or damaged, within arms reach and I can easily reach the size and shape I want. I feel like a new woman.
What a perfect, neat & compact way to store metal dies. I have tried different ways to store them in the past, but this one beats them all. Reasonably priced & easily portable with the handle on the storage box. A nice way to be able to carry them to scrapping days & events.