AR Resonance Backb. 60 M NS Trombone
Mouthpiece Backbore for Trombone

Technical Data
- Manufactured by AR Resonance
- Small shaft
- Bore: 6.0 mm (60)
- Backbore: medium
- Weight : L (light = standard)
- Made of nickel silver
- Silver-plated
- Made in Italy
Mouthpiece Backbore for Trombone
