Affordable trombone? Our superb value trombone offers a well made and reliable instrument for the beginner with quality fittings and a great tone. This is a Bb Trombone in beautiful gold lacquer with a quality ABS case included for protection. The trombone has a bore of 12.5 mm and a bell size of 235 mm. The slide is smooth and easy to use and features a lock for secure holding of the slide. High quality components are used throughout and a full 2 year warranty is included. If you've been searching for a great value affordable trombone look no further than Axiom! All AXIOM Instruments are covered by a full 2 YEAR WARRANTY from date of purchase AXIOM Instruments - When You're Ready to Play!