Series 1200K medium length liner with sharp needle point, kolinsky red sable hair. 4 brush set with round sizes 0, 1, 2 & 4 The Maestro designation denotes the highest quality winter male kolinsky red sable hair from the tobol River region in eastern Siberia Excellent for lettering, long lines or fine line detail work; seamless nickel-plated brass ferrule ensures the brush will last Brushes are handmade from raw material to finished brush by skilled artisans at the da Vinci Factory; certified green manufacturing in Germany