The 1281 Petruschka Tuba features a .772 to .803-inch conical bore in a 5/4 size tuba designed for outstanding response and intonation. The 1281 is a perfect choice for any performance situation, from small ensemble work to the large concert halls. The Miraphone 1281 Petruschka Series 5 Valve 5/4 F Tuba is available in lacquer or silver finish. Case NOT included.