The JP232 is John Packer's double in-line (independent) rotor bass trombone. This instrument has been very successful as a step up model in the semi professional market and has been praised for its well balanced and free blowing nature. The JP232 is perfect for those that need that big brass sound on a limited budget. Highly affordable without having compromised on it's robust and well engineered construction, the JP232 features an open wrap, large bore design and sports a large 9.5-inch Yellow Brass bell. To give players the option which it comes to configuring their instrument, a D slide is also included as standard. Can be tuned Bb/F/Gb/D or Bb/F/G/Eb. - the manufacturer