AR Resonance Top 25.70 65 Bronze Trombone, Mouthpiece Top for Trombone, Inner cup diameter: 25.70 mm, Bore: 6.5 mm (65), Cup depth: Standard, Comparable to Bach 4C, Schilke 52, 52D, Greg Black 5C, Warburton 9, Weight: L (light = standard), Material:...
