FYI this horn is used but sounds good I took the parts cause I didn’t need them but I kept them anyways. I played this horn for 10 plus years. The slide needs cleaning. The lacquer on the horn is worn off but this bass trombone will definitely get your wind up cause it Definitely helped me and now I’m playing a tenor trombone louder than ever.This Mack Brass TB831L Double Trigger Bass Trombone is a high-quality instrument suitable for both professional musicians and students. With its sleek design and durable brass body, it offers excellent sound quality and a comfortable playing experience. The trombone is made by Yamaha, a trusted brand in the music industry. It features both bass and tenor tones and comes with double trigger functionality. This item falls under the category of Musical Instruments & Gear, Brass, and Trombones. Whether you're an advanced player or just starting out, this trombone is a great choice for any musician.