Intermediate Bb Trumpet - among the most popular intermediate trumpets available today. These Bach trumpets are designed for superb tone and response. The TR200 Series features a .459-inch bore with a 4.9-inch two-piece bell plus designed for excellent response and projection. The 200 Series also features one-piece Stradivarius-style valve casings plus Monel valves for smooth action. The Bach TR200 Series Bb Trumpets include a case, valve oil and Vincent Bach 7C mouthpiece.