A gorgeous sounding rose brass horn, the TJTR4500 is weightier in tone than the 2500 and 8500 modes with a solid, luxurious feel that will beguile both orchestral players and small jazz soloists alike”

Bore size: 0.465” (11.8mm) 

Bell diameter: 4.92” (125mm)

Valve material: stainless steel

Slides: cupronickel

Bell material: rose brass

Finish: silver plate

Leadpipe: rose brass

Mouthpiece: Trevor James 7C mouthpiece

Water keys: 2

Brace: TJ acoustic

Case: Backpack style case with TJ logo

1st valve thumb saddle/ 3rd valve adjustable ring