The Yamaha ysl350c is a compact tenor trombone. 500/525 dual bore, 8" bell. It is intended for people with short arms, people who play in tight quarters or want a small case for travel.

It's a Bb instrument, but when you pull the trigger it shortens to C rather than F. It has 6 positions, and is several inches shorter than a normal trombone. It's chromatic down to F below the staff. C on the staff is still in trigger 1, and B is trigger 2.

Its a lot more normal than it sounds, especially if you don't play down low.

It's in great condition, minor lacquer loss, and the slide is great. Comes with original case and mouthpiece. I've recently acquired a ysl455g and a Conn 32h which are similar in many ways but don't have the Bb/C capability. Please take this unique and well built horn off my hands. It's a very cool design. $800 + shipping. 350c shown on right in comparison to normal Bb 79h on the left side.