This is a Project Euphonium tenor bass trombone (large bore). Model number: ATBF-141G Clear lacquer finish Includes semi-hard case Price slightly reduced ♪ This is a like-new item, used for only about 2 months after purchase (including 3 weeks for maintenance). The case can be used for short-distance transport by holding the handle, but it is not suitable for carrying as a backpack. It's best to consider it as packaging for shipping. There is a dent of about 1 cm at the top of the tuning slide as an initial defect (please refer to the photos). I purchased it at a slightly lower price with this understanding, but otherwise, the water key was bent, the spit valve was not sealed, and the instrument initially wouldn't produce sound. The end plug rubber had also deteriorated and cracked, making it impossible to attach. These two issues have been repaired by a musical instrument shop, and the instrument is now in playable condition. There are slight repair marks on the water key. The slide is in good condition, and the tuning slide moves without issue. The tone is good, though subjective. *However, due to the dent on the tuning slide, the new price of Project Euphonium trombones has been revised to be lower than the price I purchased it at. I no longer wish to play this trombone, so I am selling it. I have washed it, greased the tuning slide, and oiled the rotary valve. It has been prepared so that you can play it immediately by applying slide cream upon arrival. Thank you for looking.