A customer who has purchased the reviewed product.
I ordered 3 sets. One set work perfectly, the other 2 fit very loosely in the trays, therefore creating great instability. If we move the stacked trays even a little, they collapse and papers go everywhere. I would not recommend these, however, there are no other choices of a better product of similar purpose if you've already purchased and are using the trays as we were. If I could start over, I'd find a whole different tray system.