Smaller units hold 5-6 color pencils across where this larger model holds 11 colored pencil / 6 sharpies or 8 pens across the bottom. It can hold 24 pens in each pocket. These towers bins are perfect, they clean up the clutter on your desk and store things vertically.
https://www.amazon.com/Organizer-Organizer-Supplies-Translucent-Compartments/dp/B07RSHWSR2