Here we are testing another way to store carded pens and pencils down in the supply room. I picked up this one from a German store that was closing. It was free to a good home. There are four sides and they are removable. I only have three side rack on at this time. Carded items need to be at least 3" wide and you could put them 6 deep. I will have to test it. May be a good place for carded old school supplies that I currently place in boxes. Add this to your collection, maybe, if needed and you have the space.