Different brush knots very slightly. 1. The Basic Knot is the silkiest. 2. The Basic Black Knot is essentially the same as #1 except for the color. 3. The Tuxedo Knot has more fibers than 1 and 2 so more of a medium density. 4. Is the Timber Wolf which is the densest that we carry. 5. If you are going for stiffness then the brown is it, its similar to horsehair.
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