not strong enough
I bought this magnetic sheet to store my few sets of Nestabilities. I was looking for a rigid magnetic sheet to keep them on while they are in my drawer. I didn't need them to be perfectly secure, as I was not moving them about very much, and I planned to just lie the sheet flat in my drawer to keep them together.
This sheet works *ok* for my purposes, but would not be good at all if you were putting this sheet into a binder, as it is meant for. The magnet is simply not strong enough to hold the dies in place, plus, the sheet is becoming quite warped so that the larger dies won't even stick to it at all because they are flat and the sheet is not. Basically this sheet is somewhat better than leaving my dies loose in the drawer, but not by much. I can't imagine using it in a binder system.
ETA: Since this review, I actually threw this product away. I made my own replacement magnetic sheets using sheet magnet stickers that you buy for your ink jet printer, and adhering the full sheet to a a heavy piece of chipboard. It works much better- the magnet is stronger and the sheets haven't warped after several months. So I'm changing this review to 1 star, and recommending people make their own.