There must be a difference between these flux brushes and other, cheaper ones, but I'm not sure exactly what. They are definitely good quality and as described, but for the price I don't consider them disposable. I will try to clean them after each use. Sure, they're cheap enough that I can use them for rough work, and if glue or paint accidentally dries in them, I'll just pick up a different one. One of the uses I have is as an art brush to create special effects. They are good for drawing fir branches or grass. If you need brushes for rough work and want someone to bring them to you I would recommend them.
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