Features: 1.The overall use of copper material to build, the surface of silver plating process, enhance the ability to resist corrosion, durability and service life. 2.With excellent polishing process, so that surface of tuba mouthpiece is bright and the overall appearance is beautiful. 3.Pull down to fix the mouth shape, increase the endurance of the mouth muscles, exercise the lip biting force and the concentration of the lip muscles. 4.Through the exquisite craftsmanship, which has high quality and professional production and can help you practice well and become more excellent. 5.Suitable for intermediate and advanced players, which can meet your needs and promote your musical performance. specification:Item Type: Tuba Mouthpiece Material: Cooper and Silver Plated PackageList:1 x TubaMouthpiece