This large desk organizer is my new favorite it frees up so much space on my desk I love it! It clips on to the side of your desk and it has a nice tight grip yet it has no screws or tools needed and can be removed whenever you want without damaging the surface. It has two large holes perfect for pens, pencils, ruler. I also keep my cell phone and calculator in it. There is a little tray on the top as well that can hold a decent amount of stuff as well. This is my most used organizer since it hangs off the side of my desk it frees up a lot of space. Its sturdy and high quality. I highly recommend this, I wish I had this sooner.