Thomann Grand Fifty C- Tuba, 5/4 size, 4 perinet valves, 1 rotor valve, bore size: 1.-3. valve Ø 19,00mm, 4th valve Ø 20.00mm, 5th rotor valve Ø 20,50mm, brass bell and body, 48,00cm bell, adjustable thumb ring, nickel silver inner & outer slides, silver plated, height: 98,50m,weight: 10,4 kg incl. gig bag and mouthpiece