Free blowing, great sound, great instruments for beginners and even more experienced players. • Rose brass bell and lead pipe • Cupronickel outer tuning slides • Single braced main tuning slide . Monel valves • One water key • Mouthpiece 7C • Clear lacquer finish • Bell diameter: 121.7mm/4.79" • Bore size: 11.73mm/0.46 • Zero-gravity ‘Back Pack’ hard foam case: Canvas covered, plush lined with shoulder straps • Accessories: Gloves, cleaning cloth, oil.