Jupiter JTU1140S Performance Level 4-Valve Rotary BBb TubaJupiter JTU1140S 4 Valve 3 4 BBb Tuba features a . 661 inch bore plus four mechanical link tapered rotary valves and removable yellow brass leadpipe. This tuba also features nickel silver outer slides and a removable valve section for easy maintenance and repair access. Features Silver Plated Brass Body is made from the highest quality brass and finished with a bright silver plate ensuring fine playability and tonal brilliance Precision Mechanical