The Bach C180 Stradivarius Philadelphia C Trumpet features a .462-inch bore and special leadpipe based on Vincent Bachs original design similar to the Bach Chicago C Trumpet, plus a yellow brass body with a standard weight #229 bell with a classic French bead flat rim for outstanding projection and tone. This trumpet also features a 1st valve thumb ring for easier tuning adjustment and narrower bell to valve casing and valve casing to leadpipe braces for improved resonance.