UMI Christian Lindberg Series Trombone Mouthpiece 13Cl Silver "The Christian Lindberg Series Trombone Mouthpieces offer the player a top performance mouthpiece designed with the aid of Christian Lindberg, one of the world's top trombonist The Lindberg Mouthpiece Series feature an outer shape carefully designed to create an optimal acoustical balance in all registers The Chrisian Lindberg Mouthpiece rims are sized in close relation to each other, so that changing from one to another is extremely comfortable The Christian Lindberg Series Trombone Mouthpieces are available in silver or gold finish " "CHRISTIAN LINDBERG TROMBONE MOUTHPIECE Mouthpiece rims are sized in close relation to each other, so that changing from one to another is extremely comfortable