That's a 20/0, but i think i've seen them smaller.
I actually took a 10/0 once and used an Xacto to trim the brush even smaller.
Practice a couple of times to figure out how much paint to load in the brush and don't worry too much about the black around the edge. It will be easier to paint the edges black and correct any mistakes.
I'd just get a 000 paint brush and some acryllic paint and have at it. I'd use the acryllic because it is water based and if you mess it up you can just wash it off with soap and water. Get a good brush too, not a cheapie.
A forum community dedicated to all Hobbyists. Come join the discussion about die cast, models, slot cars, radio control vehicles, classifieds, swaps, and more!