Features include a 5" (127mm) bell, a .464" (11.8mm) LARGE bore, a 21 1/4" (540mm) length, a weight of 2 lbs. 10 oz. (1.8kg), a 3C mouthpiece and a GigPac travel case. The instrument comes in lacquer or silver finish. The Bb trumpet has a 1st slide U-hook and a MICRO-TUNE slide. This gives you or your students pinpoint tuning accuracy with the new "Micro-Tune" tuning slide. The "Micro-Tune" slide allows you to have the tuning control that you have always wanted in a brass instrument. The slide has been specifically designed to compensate for each instrument's specific tuning needs. Finally a VERY "user friendly" technique of tuning that puts you in total control of your instrument.