Yamaha offer a free warranty extension for this product. Standard warranty is 3 years, to extend the warranty to 5 years for your new brass and woodwind instrument simply register it here - https://au.yamaha.com/en/support/warranty/band_orchestral/index.html

Yamaha's Intermediate model bass trombone features many of the qualities of our top pro models, yet is available at a surprisingly affordable price. It has the same bell and bore size as most pro models, and the bell is gold-brass for a sound both rich and full.

• Intermediate Series, Key: Bb/F,
• Bore: LL: 14.3mm (0.563"),
• Bell: Gold-brass, 241.0mm (9 1/2"),
• Weight: Standard,
• Outer slide: Nickel silver,
• Inner slide: Nickel silver,
• Finish: Clear lacquer