I used to use big metal brushes that looked like grill cleaners to clean Purdy brushes (for house painting). I searched for something like this to clean fine oil painting brushes and found this awesome Metal Eyebrow brush on Amazon. The plastic eyebrow brushes you get in makeup kits and stores are too brittle and you loose the teeth every few days. This one has held up for months! I love to use it everyday...sometime I paint just to use it when I'm done, really.