This Bach 42BO Stradivarius Trombone is a high-quality instrument perfect for any musician. It features an F-attachment and plays in the key of Bb. The trombone comes with a Bach case and a mouthpiece, making it ready to play right out of the box. This instrument is ideal for any level of player, whether you're a beginner or an experienced musician.As shown in the pictures, there is a dent on the bell. There are also various parts of the trombone slide laquer wear from use. The horn plays great. The trigger is a but loud but functional. Selling because I am buying a new horn.