Our most popular horn has features that include a 10" (254mm) bell, a .560" (14.23mm) bore, a 20.75" (527mm) length, a weight of 5 lbs. 13 Oz. (2.64kg), a 6 1/2 AL mouthpiece and a heavy-duty travel case. The instrument comes in silver finish. The Bb Baritone uses a large throated 10" bell. The horn produces a characteristic dark and resonant baritone sound that embellishes the full horn ensemble.