Deflecto - Desk File Organizer is best used for a few filing folders. I use mine for my folders and also for notebooks. If I placed anything else on it, such as a heavier book or several thick filing folders it started pull off my desk. Overall, I do love using it, so I have more space on my desk. Additionally, I like to use the tray on it for my medicine that I take or sometimes I use for my paper clips and push pins.