This is a Vincent Bach TB400B tenor trombone. It's a large bore, open wrap, gold brass bell, nickel outer slide model, intended for beginner to intermediate players. Overall, there are dents, lacquer peeling, and scratches. The tuning slide and F-attachment slide are not stuck, but it's recommended to apply grease. The rotary valve also functions. The slide moves, but adjustment is needed. A genuine semi-hard case is included. It's a backpack type, allowing it to be carried on your back. The handle for carrying it sideways is damaged and has been repaired, so it's recommended to avoid using it for extended periods or carrying items other than the instrument. Please purchase with the understanding that maintenance is required before use. This is an as-is sale. It's difficult to describe every detail, so if there's anything not shown in the photos or if you have any concerns, please ask in the comment section beforehand. Any issues not inquired about beforehand will be considered as agreed upon, and the sale is non-refundable, non-returnable, and non-cancellable (3N). Please refrain from purchasing if you are concerned about minor details, as this is a used item. For detailed specifications, please refer to the following page from the import agent, Nonaka Boeki: https://www.nonaka.com/bach/instruments/trombone/tnbs_tb-series.html#gsc.tab=0 This belongs to a family member, and I am not familiar with musical instruments, so my responses to questions may be delayed, but I will respond. Thank you. Thank you for viewing.