Thomann Professional F-Tuba, handmade, brass, nickel silver inner and outer slides, bore: 1. valve: 17,50 mm, 2. valve: 18,00 mm, 3. valve: 18,50 mm, 4. valve: 19,00 mm, 5. valve: 22,00 mm, Meinlschmidt rotary valves, 5 valves, engraving, lacquered. Made in Germany