New Carol Brass CTB-3039-YSS-YYNY-Y1 Trombone,Open/Close Interchangeable F wrap
 
L-bore Bb/F-rotary Tenor Trombone (open/close interchangeable F wrap). It's a more basic model of CTB-6239-YSH (Alexander Nyankin model). Light and easy to play.

Key: Bb
Bore size: L (0.547"; 13.9 mm)
Bell material: Y (Yellow brass)
Bell size: S (Standard)
Bell thickness: S (0.040"; 1.0mm)
Bell diameter: 8.504"(216.0 mm)
Finish: L (Lacquer)
Leadpipe material: Yellow brass
Tuning slide material: Inner Yellow brass / Outer Yellow brass
Hand slide material: Inner Nickel silver with hard chromium plating / Outer Yellow brass
Hand slide U bow material: Yellow brass, Rounded
Open-Closed interchangeable F section

Accessories
Interchangeable F-section
Backpacker case
CarolBrass® 6 1/2 AL mouthpiece
Polish cloth
Hand slide lube
 
HG