Compatible with Most Tuba: High 3.74 inch Insert diameter 0.51 inch, outer diameter 1.89 inch cup shape fits almost all standard tuba .Easy to wipe and clean is a gift for friends and family on Valentine's Day, Thanksgiving, Christmas, Father's Day, Mother's Day
Strong Durable: 67C4 tube mouthpiece, silver-plated surface, smoothly rim. The cuts and edges have been designed with care to make the cuts flat,suitable for long playing . High quality brass material, acid and alkali resistance, long service life, brass sound clear and bright will not cause too much pressure on the lips, can maintain lasting endurance in a l