This is a trombone Flex Hone Allied #T3151. It is for large bore trombones. It is 34 inches (86 cm) long. It has been used a lot and it is a little bent, but it is functional.
The shipping calculator sometimes charges too much. If it is over by more than a few dollars, I will give you a refund for shipping. Also, if you purchase more than one item, I will send them together to save you money.