... teeth-running smoothness in both direction. 1.Material: Alumium, Copper, Brass etc.2.Size Availiable: 3#, 4#, 5#, 8#, 10#3. ... Available: Shinny Silver, Shinny Gold, Antique Brass, Antique Silver, Light Gold, Rose Gold, Shinny Antique Brass, Shinny Black Nickel, Crystal Pearl, Black ...