Each piece of the reeds is selected for exact diameter and wall thickness. Following a number of mechanized steps, the reeds are assembled by hand and the string is coated with the strongest lacquer available. The reeds are then tested and adjusted, as necessary, before packaging. Even intonation and even tone is good. Feature - Color: As shown. - Material: Bamboo. - Size: 9.7 x 7.8 x 1.1cm/ 3.82 x 3.07 x 0.43inch. - A good tool for music instruments. - Each piece of the reeds is selected for exact diameter and wall thickness. - Following a number of mechanized steps, the reeds are assembled by hand and the string is coated with the strongest lacquer available. - The reeds are then tested and adjusted, as necessary, before packaging. Even intonation and even tone is good.