Trombone Practice Mouthpiece (TMP-SL)

The inner diameter of the TMPSL trombone practice mouthpiece is molded to conform to a standard mouthpiece, making it easy for beginners to play. This mouthpiece is made of plastic (material: PC polycarbonate). Please be careful not to scratch it. Please be careful not to hit the connector when attaching it to the instrument, as this may make it difficult to remove. If it gets dirty, wash it with lukewarm water and use it again. (Do not use alcohol, thinner, etc.