Yes, it will fit Sephora pro brushes. I have three of them in this pouch, #49 Angled, #57 Airbrush Concealer & #55 Pro Airbrush, along with three other "face brushes" and tons of eye shadow brushes.Not sure what the other person is talking about when she said they won't fit. See pic.
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I would say no. I keep my brush set separate. It may fit depending on how long it is, but with my makeup it wouldn't hold brushes in a pouch.