This pen pouch could be used for pens & pencils. Enough capacity allowing up to 20-40 slim pens or pencils. This bag is great for easy access to your headphones charging cord charger headphones and some additional odds and ends like USB memory sticks SD cards and other little adapters. It is your daily life Assistant! You can also use this bag as a cosmetic bag it can hold lipstick makeup brush eye shadow brush lip balm eyelash brush etc..