These travel pill holders are so convenient! I can clip inside my bag so that when I'm traveling, and I need to keep my medicine with me, not in the checked luggage, I don't have to go digging for it when it is time to take my medicine! Genius! Each container is big enough for my pills. I don't have any that I take 2x's a day, so I can takd 2 weeks worth with me, without taking the whole great big bottle!