Startone PTB-20 Bb/F- Trombone Gold, Bb/F Quarto trombone made of ABS plastic, Bore Ø: 13.90 mm, Bell Ø: 219 mm, Weight: 860 g, Colour: Gold High Gloss, Includes ABS mouthpiece and soft-bag@+*Note:* Mouthpiece colours may vary from mouthpiece to mouthpiece@+@+