The Jupiter 532S intermediate trombone is a perfect instrument for a committed student who has shown genuine interest in developing his or her musicianship, and deserves to be rewarded for that interest with a superior instrument. It is also a great trombone to learn on from the outset, and it is even a professionaly presentable instrument. Its pro features include .525" bore, an 8.1" bell, a nickel silver outer slide ans a nice wood frame case. This instrument is more than enough horn to get a student through his or her high school and college years. It is durable, well-made, and functions beautifully.