The concept of this C/Bb pocket trumpet is from Mathieu François

Key: C/Bb
Bore size: ML (0.460”; 11.7mm)
Bell material: Y (Yellow brass)
Bell size: L (#72)
Bell thickness: S (0.024”; 0.6mm)
Bell diameter: 4.724” (120.0mm)
Finish: L (Lacquer)
Leadpipe material: Yellow brass
Tuning slide material: Inner / Outer Yellow brass
1st tuning slide fixed finger ring
3rd tuning slide, adjustable finger ring & stop screw

Accessories
Trumpet Gig bag
CarolBrass® 3C mouthpiece
Bb key mouthpipe
Bb key 1st tuning slide
Bb key 2nd tuning slide
Bb key 3rd tuning slide
Polish cloth
La Tromba T2 valve oil
Ultra Pure tuning slide lube
User booklet