Alnicov Gold Plated White Shell Inlays Trumpet Finger Buttons for Replacement Set of 3

Material:Copper,White Shell Product size:approx.16 x 9mm/0.63 x 0.35inch(Dia x T) For replacing old,broken and missing buttons Help to improve the accuracy of the keys and improve the fluency of playing Fit for many models of trumpet finger button replacement and repairing