Carol Brass Pocket Bb Trumpet in silver plate. New From CAROL BRASS. Bb Pocket trumpet, I think this to be the best Pocket trumpet available. .460′ bore, Gold Brass 5′ full sized bell, 1st and 3rd slide rings. Stainless steel pistons, Amado waterkeys. Yellow brass mouthpipe. Includes deluxe ABS case and 3C mouthpiece. Made in Taiwan, excellent quality, finish. The tone is superb, the pitch is spot on. Don’t be left with out a horn ever again! Perfect for travel or spare. Check out the HornTrader YouTube of this cool horn ~http://www.youtube.com/watch?v=cAL1P5Dmqqc~ 11.7 m/m bore. 93 m/m gold brass Large Diameter bell. Yellow brass mouthpipe. Yellow brass inside/outside tuning slides. 1ST/3rd valve slide fixed ring. Deluxe ABS case, 7C mouthpiece.