High quality: Our trumpet mouthpieces are made of brass, offering a comfortable touch and excellent sound. The thick silver plating makes them easy to clean and maintain. Value Pack: The package includes 3 trumpet mouthpieces (1x 7C, 1x 5C, 1x 3C). This set meets various performance and practice needs. Precise Size: These mouthpieces come in three sizes, ranging from small to large, with precise specifications for outer rim, inner cup, inner diameter, and backbore. Engraved markings allow quick identification of each type. Beginners are recommended to start with the 7C, which produces sound more easily. As lip strength improves with practice, players can progress to the 5C and then the 3C, which is typically used by advanced or professional players. Application: These mouthpieces are compatible with most standard trumpets and suitable for use in schools, concert halls, bars, homes, band practice areas, and other settings. Color: Silver Material: Brass Package Contents: 1 x 7C Mouthpiece 1 x 5C Mouthpiece 1 x 3C Mouthpiece Note: The package includes only the items listed above. Light reflection and differences in display screens may cause slight variations in color. Measurement may vary by +/- 1-3 cm.