Description: A professional French horn mouthpiece For Yamaha, Bach, Conn and King French Horn Made of high quality metal material, both durable and stylish It is computer-aided design system and computer controlled lathe work together to produce the most precise mouthpieces Suitable for French horn professional enthusiasts and beginners Size Chart: Product Size: 6.5*2.6*2.6cm/2.56*1.02*1.02" Connector Outer Diameter: 0.7cm/0.28" Connector Inner Diameter: 0.5cm/0.2" Package Includes: 1 x French Horn Mouthpiece