This is a Bb/A Colibri Benge piccolo trumpet in a silver finish. The 4PSP Colibri offers exceptional sound at an affordable price. This piccolo trumpet features a .421-inch bore with a 3.5-inch bell that is 10-inches long for a responsive instrument with projection. The 4PSP also features an offset 4th valve for player comfort. Serial number is 504208., Instrument comes with case.