Key: Bb (4th valve lower 1/4)
Bore size: ML (0.460”; 11.7mm)
Main tuning slide: H (Standard ,Two roots)
Bell material: Y (Yellow brass), soldered wire rim
Bell size: S (# 37)
Bell thickness: S (0.024”; 0.6mm)
Bell diameter: 5.25” (133.0mm)
Finish: L (Lacquer)
Leadpipe material: Yellow brass
Tuning slide material: Inner Yellow brass / Outer Nickel silver
1st tuning slide finger ring
3rd tuning slide finger ring & rod-styled stopper

Accessories
2 trumpet backpacker case
CarolBrass® 1C mouthpiece
Polish cloth
Valve guard
La Tromba T2 valve oil
Ultra Pure tuning slide lube
Squared crook main tuning slide
Super thin finger button set
User booklet